firefly-linux-kernel-4.4.55.git
11 years agork3168: ds1006h: update dvfs table
chenxing [Tue, 22 Jan 2013 12:31:07 +0000 (20:31 +0800)]
rk3168: ds1006h: update dvfs table

11 years agork3188: add pm support
chenxing [Tue, 22 Jan 2013 10:26:50 +0000 (18:26 +0800)]
rk3188: add pm support

11 years agoMerge branch 'develop-3.0' of ssh://10.10.10.29/rk/kernel into develop-3.0
xbw [Tue, 22 Jan 2013 10:07:11 +0000 (18:07 +0800)]
Merge branch 'develop-3.0' of ssh://10.10.10.29/rk/kernel into develop-3.0

11 years agoSDMMC:
xbw [Tue, 22 Jan 2013 10:06:47 +0000 (18:06 +0800)]
SDMMC:
1.Compatible with the new interface function of IOMUX-API.
2.To simplify the configuration of the sd-sdio-wifi.

11 years agoforget adding dvfs.c,so submit again
xxx [Tue, 22 Jan 2013 10:05:40 +0000 (18:05 +0800)]
forget adding dvfs.c,so submit again

11 years agoMerge branch 'develop-3.0' of ssh://10.10.10.29/rk/kernel into develop-3.0
xbw [Tue, 22 Jan 2013 09:59:07 +0000 (17:59 +0800)]
Merge branch 'develop-3.0' of ssh://10.10.10.29/rk/kernel into develop-3.0

11 years agoSDMMC:
xbw [Tue, 22 Jan 2013 09:54:47 +0000 (17:54 +0800)]
SDMMC:
1.Compatible with the new interface function of IOMUX-API
2.Eliminate the intererupt-card-det cause the wakeup.

11 years agoadd dvfs.c in mach-rk3188 file
xxx [Tue, 22 Jan 2013 09:52:44 +0000 (17:52 +0800)]
add dvfs.c in mach-rk3188 file

11 years agoreboot system if power off with dc charger pluged in
xkd [Tue, 22 Jan 2013 09:33:22 +0000 (17:33 +0800)]
reboot system if power off with dc charger pluged in

11 years agork3168 ds1006: camera flash sgm3140
wuhao [Tue, 22 Jan 2013 09:32:14 +0000 (17:32 +0800)]
rk3168 ds1006: camera flash sgm3140

11 years agoSPIM:fix SPI_MODE_2 bug
luowei [Tue, 22 Jan 2013 09:25:05 +0000 (17:25 +0800)]
SPIM:fix SPI_MODE_2 bug

11 years agogpu clk adn gpu aclk is set at on time for rk3168 and rk3066B
xxx [Tue, 22 Jan 2013 09:23:22 +0000 (17:23 +0800)]
gpu clk adn gpu aclk is set at on time for rk3168 and rk3066B

11 years agork30 lcdc:enable frame start irq
yxj [Tue, 22 Jan 2013 08:29:00 +0000 (16:29 +0800)]
rk30 lcdc:enable frame start irq

11 years agoboard rk30 sdk:modify fb_io_enable/disable function
yxj [Tue, 22 Jan 2013 08:17:15 +0000 (16:17 +0800)]
board rk30 sdk:modify fb_io_enable/disable function

11 years agodp501: add config for low power,now the all power of dp501 is 303ma
yxj [Tue, 22 Jan 2013 07:39:19 +0000 (15:39 +0800)]
dp501: add config for low power,now the all power of dp501 is 303ma

11 years agork3168/rk3188: update dvfs table to fit rk3188
chenxing [Tue, 22 Jan 2013 06:37:16 +0000 (14:37 +0800)]
rk3168/rk3188: update dvfs table to fit rk3188

11 years agork30: fix a dvfs error judgement
chenxing [Tue, 22 Jan 2013 06:11:05 +0000 (14:11 +0800)]
rk30: fix a dvfs error judgement

11 years agoarm gpu ddr rate is limited by cpufreq_frequency_table in board-xxx.c
xxx [Tue, 22 Jan 2013 04:31:39 +0000 (12:31 +0800)]
arm gpu ddr rate is limited by cpufreq_frequency_table in board-xxx.c

11 years agork_timer: support sched_clock
黄涛 [Tue, 22 Jan 2013 03:30:13 +0000 (11:30 +0800)]
rk_timer: support sched_clock

11 years agoextern rk30_dvfs_init() in /mach-rk3188/clock_data.c
xxx [Tue, 22 Jan 2013 02:38:10 +0000 (10:38 +0800)]
extern rk30_dvfs_init() in /mach-rk3188/clock_data.c

11 years agork: sram.h: fix gcc error: unknown type name 'uint'
黄涛 [Tue, 22 Jan 2013 02:34:47 +0000 (10:34 +0800)]
rk: sram.h: fix gcc error: unknown type name 'uint'

11 years agork3066b lcdc:fix unbalanced lcdc dclk disable warning
yxj [Mon, 21 Jan 2013 10:24:43 +0000 (18:24 +0800)]
rk3066b lcdc:fix unbalanced lcdc dclk disable warning

11 years agork2928: cpufreq: include ddr.h for fix implicit declaration of function ddr_set_rate...
黄涛 [Mon, 21 Jan 2013 10:34:39 +0000 (18:34 +0800)]
rk2928: cpufreq: include ddr.h for fix implicit declaration of function ddr_set_rate error

11 years agoto fix ds1006h crash bug:
陈辉 [Mon, 21 Jan 2013 10:24:52 +0000 (18:24 +0800)]
to fix ds1006h crash bug:
3168 with U2BXX title, fix maskrom bug,
but need higher voltage on ddr

11 years agomov dvfs global fun to rk plat
xxx [Mon, 21 Jan 2013 09:53:00 +0000 (17:53 +0800)]
mov dvfs global fun to rk plat

11 years agorename screen Kconfig for ds1006h,ds1006h use lvds screen ,not display port screen
yxj [Mon, 21 Jan 2013 09:34:11 +0000 (17:34 +0800)]
rename screen Kconfig for ds1006h,ds1006h use lvds screen ,not display port screen

11 years agoMerge remote-tracking branch 'stable/linux-3.0.y' into develop-3.0
黄涛 [Mon, 21 Jan 2013 09:21:19 +0000 (17:21 +0800)]
Merge remote-tracking branch 'stable/linux-3.0.y' into develop-3.0

Merge v3.0.59
Conflicts:
Makefile
drivers/net/wireless/ath/ath9k/ar9003_2p2_initvals.h
drivers/net/wireless/ath/ath9k/ar9003_eeprom.h
drivers/usb/serial/option.c

11 years agodp501:add suspend resume support
yxj [Mon, 21 Jan 2013 09:06:43 +0000 (17:06 +0800)]
dp501:add suspend resume support

11 years agoedp transmitter dp501 support
yxj [Mon, 21 Jan 2013 08:23:22 +0000 (16:23 +0800)]
edp transmitter dp501 support

11 years agoLR097: enable peripheral driver && mod ddr freq ==> 360M and increse logic vol
yj [Mon, 21 Jan 2013 07:56:40 +0000 (15:56 +0800)]
LR097: enable  peripheral  driver && mod ddr freq ==> 360M and increse logic vol

11 years agork3188: tb: defconfig add RTC_HYM8563
黄涛 [Mon, 21 Jan 2013 07:52:40 +0000 (15:52 +0800)]
rk3188: tb: defconfig add RTC_HYM8563

11 years agort3261: fix two little issue.
宋秀杰 [Mon, 21 Jan 2013 07:12:10 +0000 (15:12 +0800)]
rt3261: fix two little issue.

11 years agork3188: support RK_USB_UART config
黄涛 [Mon, 21 Jan 2013 06:11:29 +0000 (14:11 +0800)]
rk3188: support RK_USB_UART config

11 years agork3188: usb_detect: support bvalid irq wake up system
黄涛 [Mon, 21 Jan 2013 06:08:50 +0000 (14:08 +0800)]
rk3188: usb_detect: support bvalid irq wake up system

11 years agork3188: rename cpu_div parent name, remove while(1)
chenxing [Mon, 21 Jan 2013 02:35:29 +0000 (10:35 +0800)]
rk3188: rename cpu_div parent name, remove while(1)

11 years agork: cpu.h: fix gcc warning for cpu_is_rk3066b
黄涛 [Mon, 21 Jan 2013 02:13:40 +0000 (10:13 +0800)]
rk: cpu.h: fix gcc warning for cpu_is_rk3066b

11 years agork: add ddr_set_rate to ddr.h
黄涛 [Mon, 21 Jan 2013 02:06:05 +0000 (10:06 +0800)]
rk: add ddr_set_rate to ddr.h

11 years agork3188: use rk30 cpufreq
黄涛 [Mon, 21 Jan 2013 02:03:36 +0000 (10:03 +0800)]
rk3188: use rk30 cpufreq

11 years agork lcdc:modify Kconfig
yxj [Sat, 19 Jan 2013 09:44:05 +0000 (17:44 +0800)]
rk lcdc:modify Kconfig

11 years agork3188 lcdc:add iomux for lcdc1
yxj [Sat, 19 Jan 2013 09:21:29 +0000 (17:21 +0800)]
rk3188 lcdc:add iomux for lcdc1

11 years agork3168_tb:support rtc_hym8563
张晴 [Fri, 18 Jan 2013 08:09:26 +0000 (16:09 +0800)]
rk3168_tb:support rtc_hym8563

11 years agork3188: CIF_XXX --> CIF0_XXX
kfx [Fri, 18 Jan 2013 03:40:18 +0000 (11:40 +0800)]
rk3188: CIF_XXX --> CIF0_XXX

11 years agocamera:support 3188 fpga success.
zyc [Fri, 18 Jan 2013 02:51:11 +0000 (10:51 +0800)]
camera:support 3188 fpga success.

11 years agoSDMMC: for RK3188, modify error during calling the nei IOMUX-API
xbw [Fri, 18 Jan 2013 01:47:33 +0000 (09:47 +0800)]
SDMMC: for RK3188, modify error during calling the nei IOMUX-API

11 years agoif PWM_EFFECT_VALUE==0,set PWM_GPIO=GPIO_LOW would cause backlight resume flash
yzq [Fri, 18 Jan 2013 01:25:09 +0000 (09:25 +0800)]
if PWM_EFFECT_VALUE==0,set PWM_GPIO=GPIO_LOW would cause backlight resume flash

11 years agoLinux 3.0.59
Greg Kroah-Hartman [Thu, 17 Jan 2013 16:48:09 +0000 (08:48 -0800)]
Linux 3.0.59

11 years agostaging: comedi: Kconfig: COMEDI_NI_AT_A2150 should select COMEDI_FC
Ian Abbott [Thu, 3 Jan 2013 12:15:26 +0000 (12:15 +0000)]
staging: comedi: Kconfig: COMEDI_NI_AT_A2150 should select COMEDI_FC

commit 34ffb33e09132401872fe79e95c30824ce194d23 upstream.

The 'ni_at_a2150' module links to `cfc_write_to_buffer` in the
'comedi_fc' module, so selecting 'COMEDI_NI_AT_A2150' in the kernel config
needs to also select 'COMEDI_FC'.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: comedi: don't hijack hardware device private data
Ian Abbott [Fri, 30 Mar 2012 16:14:58 +0000 (17:14 +0100)]
staging: comedi: don't hijack hardware device private data

commit c43435d7722134ed1fda58ce1025f41029bd58ad upstream.

comedi_auto_config() associates a Comedi minor device number with an
auto-configured hardware device and comedi_auto_unconfig() disassociates
it.  Currently, these use the hardware device's private data pointer to
point to some allocated storage holding the minor device number.  This
is a bit of a waste of the hardware device's private data pointer,
preventing it from being used for something more useful by the low-level
comedi device drivers.  For example, it would make more sense if
comedi_usb_auto_config() was passed a pointer to the struct
usb_interface instead of the struct usb_device, but this cannot be done
currently because the low-level comedi drivers already use the private
data pointer in the struct usb_interface for something more useful.

This patch stops the comedi core hijacking the hardware device's private
data pointer.  Instead, comedi_auto_config() stores a pointer to the
hardware device's struct device in the struct comedi_device_file_info
associated with the minor device number, and comedi_auto_unconfig()
calls new function comedi_find_board_minor() to recover the minor device
number associated with the hardware device.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoRevert "drm/i915: no lvds quirk for Zotac ZDBOX SD ID12/ID13"
Daniel Vetter [Mon, 7 Jan 2013 09:27:13 +0000 (10:27 +0100)]
Revert "drm/i915: no lvds quirk for Zotac ZDBOX SD ID12/ID13"

commit 48e858340dae43189a4e55647f6eac736766f828 upstream.

This reverts commit 9756fe38d10b2bf90c81dc4d2f17d5632e135364.

The bogus lvds output is actually a lvds->hdmi bridge, which we don't
really support. But unconditionally disabling it breaks some existing
setups.

Reported-by: John Tapsell <johnflux@gmail.com>
References: http://permalink.gmane.org/gmane.comp.freedesktop.xorg.drivers.intel/17237
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Luis Henriques <luis.henriques@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoKVM: PPC: 44x: fix DCR read/write
Alexander Graf [Sat, 6 Oct 2012 01:56:35 +0000 (03:56 +0200)]
KVM: PPC: 44x: fix DCR read/write

commit e43a028752fed049e4bd94ef895542f96d79fa74 upstream.

When remembering the direction of a DCR transaction, we should write
to the same variable that we interpret on later when doing vcpu_run
again.

Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: CAI Qian <caiqian@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agointel-iommu: Free old page tables before creating superpage
Woodhouse, David [Wed, 19 Dec 2012 13:25:35 +0000 (13:25 +0000)]
intel-iommu: Free old page tables before creating superpage

commit 6491d4d02893d9787ba67279595990217177b351 upstream.

The dma_pte_free_pagetable() function will only free a page table page
if it is asked to free the *entire* 2MiB range that it covers. So if a
page table page was used for one or more small mappings, it's likely to
end up still present in the page tables... but with no valid PTEs.

This was fine when we'd only be repopulating it with 4KiB PTEs anyway
but the same virtual address range can end up being reused for a
*large-page* mapping. And in that case were were trying to insert the
large page into the second-level page table, and getting a complaint
from the sanity check in __domain_mapping() because there was already a
corresponding entry. This was *relatively* harmless; it led to a memory
leak of the old page table page, but no other ill-effects.

Fix it by calling dma_pte_clear_range (hopefully redundant) and
dma_pte_free_pagetable() before setting up the new large page.

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Tested-by: Ravi Murty <Ravi.Murty@intel.com>
Tested-by: Sudeep Dutt <sudeep.dutt@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: CAI Qian <caiqian@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoGFS2: Test bufdata with buffer locked and gfs2_log_lock held
Benjamin Marzinski [Wed, 7 Nov 2012 06:38:06 +0000 (00:38 -0600)]
GFS2: Test bufdata with buffer locked and gfs2_log_lock held

commit 96e5d1d3adf56f1c7eeb07258f6a1a0a7ae9c489 upstream.

In gfs2_trans_add_bh(), gfs2 was testing if a there was a bd attached to the
buffer without having the gfs2_log_lock held. It was then assuming it would
stay attached for the rest of the function. However, without either the log
lock being held of the buffer locked, __gfs2_ail_flush() could detach bd at any
time.  This patch moves the locking before the test.  If there isn't a bd
already attached, gfs2 can safely allocate one and attach it before locking.
There is no way that the newly allocated bd could be on the ail list,
and thus no way for __gfs2_ail_flush() to detach it.

Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
[bwh: Backported to 3.2: adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
11 years agoxhci: Handle HS bulk/ctrl endpoints that don't NAK.
Sarah Sharp [Mon, 17 Dec 2012 22:12:35 +0000 (14:12 -0800)]
xhci: Handle HS bulk/ctrl endpoints that don't NAK.

commit 55c1945edaac94c5338a3647bc2e85ff75d9cf36 upstream.

A high speed control or bulk endpoint may have bInterval set to zero,
which means it does not NAK.  If bInterval is non-zero, it means the
endpoint NAKs at a rate of 2^(bInterval - 1).

The xHCI code to compute the NAK interval does not handle the special
case of zero properly.  The current code unconditionally subtracts one
from bInterval and uses it as an exponent.  This causes a very large
bInterval to be used, and warning messages like these will be printed:

usb 1-1: ep 0x1 - rounding interval to 32768 microframes, ep desc says 0 microframes

This may cause the xHCI host hardware to reject the Configure Endpoint
command, which means the HS device will be unusable under xHCI ports.

This patch should be backported to kernels as old as 2.6.31, that contain
commit dfa49c4ad120a784ef1ff0717168aa79f55a483a "USB: xhci - fix math in
xhci_get_endpoint_interval()".

Reported-by: Vincent Pelletier <plr.vincent@gmail.com>
Suggested-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: hub: handle claim of enabled remote wakeup after reset
Oliver Neukum [Thu, 29 Nov 2012 14:05:57 +0000 (15:05 +0100)]
USB: hub: handle claim of enabled remote wakeup after reset

commit 07e72b95f5038cc82304b9a4a2eb7f9fc391ea68 upstream.

Some touchscreens have buggy firmware which claims
remote wakeup to be enabled after a reset. They nevertheless
crash if the feature is cleared by the host.
Add a check for reset resume before checking for
an enabled remote wakeup feature. On compliant
devices the feature must be cleared after a reset anyway.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: Increase reset timeout.
Sarah Sharp [Thu, 15 Nov 2012 01:16:52 +0000 (17:16 -0800)]
USB: Increase reset timeout.

commit 77c7f072c87fa951e9a74805febf26466f31170c upstream.

John's NEC 0.96 xHCI host controller needs a longer timeout for a warm
reset to complete.  The logs show it takes 650ms to complete the warm
reset, so extend the hub reset timeout to 800ms to be on the safe side.

This commit should be backported to kernels as old as 3.2, that contain
the commit 75d7cf72ab9fa01dc70877aa5c68e8ef477229dc "usbcore: refine
warm reset logic".

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Reported-by: John Covici <covici@ccs.covici.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agousb: gadget: dummy: fix enumeration with g_multi
Sebastian Andrzej Siewior [Tue, 20 Nov 2012 12:23:15 +0000 (13:23 +0100)]
usb: gadget: dummy: fix enumeration with g_multi

commit 1d16638e3b9cc195bac18a8fcbca748f33c1bc24 upstream.

If we do have endpoints named like "ep-a" then bEndpointAddress is
counted internally by the gadget framework.

If we do have endpoints named like "ep-1" then bEndpointAddress is
assigned from the digit after "ep-".

If we do have both, then it is likely that after we used up the
"generic" endpoints we will use the digits and thus assign one
bEndpointAddress to multiple endpoints.

This theory can be proofed by using the completely enabled g_multi.
Without this patch, the mass storage won't enumerate and times out
because it shares endpoints with RNDIS.

This patch also adds fills up the endpoints list so we have in total
endpoints 1 to 15 in + out available while some of them are restricted
to certain types like BULK or ISO. Without this change the nokia gadget
won't load because the system does not provide enough (BULK) endpoints
but it did before ep-a - ep-f were removed.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: cdc-acm: Add support for "PSC Scanning, Magellan 800i"
Denis N Ladin [Wed, 26 Dec 2012 13:29:44 +0000 (18:29 +0500)]
USB: cdc-acm: Add support for "PSC Scanning, Magellan 800i"

commit 036915a7a402753c05b8d0529f5fd08805ab46d0 upstream.

Adding support "PSC Scanning, Magellan 800i" in cdc-acm

Very simple, but very necessary.
Suitable for all versions of the kernel > 2.6

Signed-off-by: Denis N Ladin <denladin@gmail.com>
Acked-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agousb: ftdi_sio: Crucible Technologies COMET Caller ID - pid added
Tomasz Mloduchowski [Sun, 13 Jan 2013 22:32:53 +0000 (23:32 +0100)]
usb: ftdi_sio: Crucible Technologies COMET Caller ID - pid added

commit 8cf65dc386f3634a43312f436cc7a935476a40c4 upstream.

Simple fix to add support for Crucible Technologies COMET Caller ID
USB decoder - a device containing FTDI USB/Serial converter chip,
handling 1200bps CallerID messages decoded from the phone line -
adding correct USB PID is sufficient.

Tested to apply cleanly and work flawlessly against 3.6.9, 3.7.0-rc8
and 3.8.0-rc3 on both amd64 and x86 arches.

Signed-off-by: Tomasz Mloduchowski <q@qdot.me>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: option: add Telekom Speedstick LTE II
Bjørn Mork [Fri, 28 Dec 2012 16:29:52 +0000 (17:29 +0100)]
USB: option: add Telekom Speedstick LTE II

commit 5ec0085440ef8c2cf50002b34d5a504ee12aa2bf upstream.

also known as Alcatel One Touch L100V LTE

The driver description files gives these names to the vendor specific
functions on this modem:

 Application1: VID_1BBB&PID_011E&MI_00
 Application2: VID_1BBB&PID_011E&MI_01
 Modem:        VID_1BBB&PID_011E&MI_03
 Ethernet:     VID_1BBB&PID_011E&MI_04

Reported-by: Thomas Schäfer <tschaefer@t-online.de>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: option: Add new MEDIATEK PID support
Quentin.Li [Wed, 26 Dec 2012 08:58:22 +0000 (16:58 +0800)]
USB: option: Add new MEDIATEK PID support

commit 94a85b633829b946eef53fc1825d526312fb856f upstream.

In option.c, add some new MEDIATEK PIDs support for MEDIATEK new products. This
is a MEDIATEK inc. release patch.

Signed-off-by: Quentin.Li <snowmanli88@163.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: option: blacklist network interface on ZTE MF880
Bjørn Mork [Wed, 19 Dec 2012 14:15:17 +0000 (15:15 +0100)]
USB: option: blacklist network interface on ZTE MF880

commit fab38246f318edcd0dcb8fd3852a47cf8938878a upstream.

The driver description files gives these names to the vendor specific
functions on this modem:

 diag: VID_19D2&PID_0284&MI_00
 nmea: VID_19D2&PID_0284&MI_01
 at:   VID_19D2&PID_0284&MI_02
 mdm:  VID_19D2&PID_0284&MI_03
 net:  VID_19D2&PID_0284&MI_04

Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: option: add Nexpring NP10T terminal id
Dzianis Kahanovich [Mon, 3 Dec 2012 13:06:26 +0000 (16:06 +0300)]
USB: option: add Nexpring NP10T terminal id

commit ad86e58661b38b279b7519d4e49c7a19dc1654bb upstream.

Hyundai Petatel Inc. Nexpring NP10T terminal (EV-DO rev.A USB modem) ID

Signed-off-by: Denis Kaganovich <mahatma@eu.by>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agomac80211: use del_timer_sync for final sta cleanup timer deletion
Johannes Berg [Thu, 13 Dec 2012 22:08:52 +0000 (23:08 +0100)]
mac80211: use del_timer_sync for final sta cleanup timer deletion

commit a56f992cdabc63f56b4b142885deebebf936ff76 upstream.

This is a very old bug, but there's nothing that prevents the
timer from running while the module is being removed when we
only do del_timer() instead of del_timer_sync().

The timer should normally not be running at this point, but
it's not clearly impossible (or we could just remove this.)

Tested-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoradeon/kms: force rn50 chip to always report connected on analog output
Jerome Glisse [Tue, 8 Jan 2013 23:41:01 +0000 (18:41 -0500)]
radeon/kms: force rn50 chip to always report connected on analog output

commit 51861d4eebc2ddc25c77084343d060fa79f6e291 upstream.

Those rn50 chip are often connected to console remoting hw and load
detection often fails with those. Just don't try to load detect and
report connect.

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: speakup: avoid out-of-range access in synth_add()
Samuel Thibault [Mon, 7 Jan 2013 21:03:51 +0000 (22:03 +0100)]
staging: speakup: avoid out-of-range access in synth_add()

commit 6102c48bd421074a33e102f2ebda3724e8d275f9 upstream.

Check that array index is in-bounds before accessing the synths[] array.

Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Cc: Nickolai Zeldovich <nickolai@csail.mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: speakup: avoid out-of-range access in synth_init()
Nickolai Zeldovich [Sat, 5 Jan 2013 19:17:45 +0000 (14:17 -0500)]
staging: speakup: avoid out-of-range access in synth_init()

commit ae428655b826f2755a8101b27beda42a275ef8ad upstream.

Check that array index is in-bounds before accessing the synths[] array.

Signed-off-by: Nickolai Zeldovich <nickolai@csail.mit.edu>
Cc: Samuel Thibault <samuel.thibault@ens-lyon.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: r8712u: Add new device ID
Larry Finger [Sat, 29 Dec 2012 17:36:53 +0000 (11:36 -0600)]
staging: r8712u: Add new device ID

commit da849a92d3bafaf24d770e971c2c9e5c3f60b5d1 upstream.

The ISY IWL 1000 USB WLAN stick with USB ID 050d:11f1 is a clone of
the Belkin F7D1101 V1 device.

Reported-by: Thomas Hartmann <hartmann@ict.tuwien.ac.at>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Thomas Hartmann <hartmann@ict.tuwien.ac.at>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: comedi: comedi_test: fix race when cancelling command
Ian Abbott [Fri, 4 Jan 2013 11:33:21 +0000 (11:33 +0000)]
staging: comedi: comedi_test: fix race when cancelling command

commit c0729eeefdcd76db338f635162bf0739fd2c5f6f upstream.

Éric Piel reported a kernel oops in the "comedi_test" module.  It was a
NULL pointer dereference within `waveform_ai_interrupt()` (actually a
timer function) that sometimes occurred when a running asynchronous
command is cancelled (either by the `COMEDI_CANCEL` ioctl or by closing
the device file).

This seems to be a race between the caller of `waveform_ai_cancel()`
which on return from that function goes and tears down the running
command, and the timer function which uses the command.  In particular,
`async->cmd.chanlist` gets freed (and the pointer set to NULL) by
`do_become_nonbusy()` in "comedi_fops.c" but a previously scheduled
`waveform_ai_interrupt()` timer function will dereference that pointer
regardless, leading to the oops.

Fix it by replacing the `del_timer()` call in `waveform_ai_cancel()`
with `del_timer_sync()`.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reported-by: Éric Piel <piel@delmic.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: comedi: prevent auto-unconfig of manually configured devices
Ian Abbott [Tue, 4 Dec 2012 15:59:55 +0000 (15:59 +0000)]
staging: comedi: prevent auto-unconfig of manually configured devices

commit 7d3135af399e92cf4c9bbc5f86b6c140aab3b88c upstream.

When a low-level comedi driver auto-configures a device, a `struct
comedi_dev_file_info` is allocated (as well as a `struct
comedi_device`) by `comedi_alloc_board_minor()`.  A pointer to the
hardware `struct device` is stored as a cookie in the `struct
comedi_dev_file_info`.  When the low-level comedi driver
auto-unconfigures the device, `comedi_auto_unconfig()` uses the cookie
to find the `struct comedi_dev_file_info` so it can detach the comedi
device from the driver, clean it up and free it.

A problem arises if the user manually unconfigures and reconfigures the
comedi device using the `COMEDI_DEVCONFIG` ioctl so that is no longer
associated with the original hardware device.  The problem is that the
cookie is not cleared, so that a call to `comedi_auto_unconfig()` from
the low-level driver will still find it, detach it, clean it up and free
it.

Stop this problem occurring by always clearing the `hardware_device`
cookie in the `struct comedi_dev_file_info` whenever the
`COMEDI_DEVCONFIG` ioctl call is successful.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoALSA: pxa27x: fix ac97 cold reset
Mike Dunn [Mon, 7 Jan 2013 21:55:12 +0000 (13:55 -0800)]
ALSA: pxa27x: fix ac97 cold reset

commit 41b645c8624df6ace020a8863ad1449d69140f7d upstream.

Cold reset on the pxa27x currently fails and

     pxa2xx_ac97_try_cold_reset: cold reset timeout (GSR=0x44)

appears in the kernel log.  Through trial-and-error (the pxa270 developer's
manual is mostly incoherent on the topic of ac97 reset), I got cold reset to
complete by setting the WARM_RST bit in the GCR register (and later noticed that
pxa3xx does this for cold reset as well).  Also, a timeout loop is needed to
wait for the reset to complete.

Tested on a palm treo 680 machine.

Signed-off-by: Mike Dunn <mikedunn@newsguy.com>
Acked-by: Igor Grinberg <grinberg@compulab.co.il>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoASoC: wm2000: Fix sense of speech clarity enable
Mark Brown [Fri, 4 Jan 2013 21:18:12 +0000 (21:18 +0000)]
ASoC: wm2000: Fix sense of speech clarity enable

commit 267f8fa2e1eef0612b2007e1f1846bcbc35cc1fa upstream.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoepoll: prevent missed events on EPOLL_CTL_MOD
Eric Wong [Tue, 1 Jan 2013 21:20:27 +0000 (21:20 +0000)]
epoll: prevent missed events on EPOLL_CTL_MOD

commit 128dd1759d96ad36c379240f8b9463e8acfd37a1 upstream.

EPOLL_CTL_MOD sets the interest mask before calling f_op->poll() to
ensure events are not missed.  Since the modifications to the interest
mask are not protected by the same lock as ep_poll_callback, we need to
ensure the change is visible to other CPUs calling ep_poll_callback.

We also need to ensure f_op->poll() has an up-to-date view of past
events which occured before we modified the interest mask.  So this
barrier also pairs with the barrier in wq_has_sleeper().

This should guarantee either ep_poll_callback or f_op->poll() (or both)
will notice the readiness of a recently-ready/modified item.

This issue was encountered by Andreas Voellmy and Junchang(Jason) Wang in:
http://thread.gmane.org/gmane.linux.kernel/1408782/

Signed-off-by: Eric Wong <normalperson@yhbt.net>
Cc: Hans Verkuil <hans.verkuil@cisco.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Davide Libenzi <davidel@xmailserver.org>
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
Cc: David Miller <davem@davemloft.net>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Andreas Voellmy <andreas.voellmy@yale.edu>
Tested-by: "Junchang(Jason) Wang" <junchang.wang@yale.edu>
Cc: netdev@vger.kernel.org
Cc: linux-fsdevel@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
[bwh: Backported to 3.2: adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agortnetlink: fix rtnl_calcit() and rtnl_dump_ifinfo()
Eric Dumazet [Fri, 4 Jan 2013 00:34:22 +0000 (00:34 +0000)]
rtnetlink: fix rtnl_calcit() and rtnl_dump_ifinfo()

commit a4b64fbe482c7766f7925f03067fc637716bfa3f upstream.

nlmsg_parse() might return an error, so test its return value before
potential random memory accesses.

Errors introduced in commit 115c9b81928 (rtnetlink: Fix problem with
buffer allocation)

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Acked-by: Greg Rose <gregory.v.rose@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Cc: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agortnetlink: Fix problem with buffer allocation
Greg Rose [Fri, 4 Jan 2013 00:33:34 +0000 (00:33 +0000)]
rtnetlink: Fix problem with buffer allocation

commit 115c9b81928360d769a76c632bae62d15206a94a upstream.

Implement a new netlink attribute type IFLA_EXT_MASK.  The mask
is a 32 bit value that can be used to indicate to the kernel that
certain extended ifinfo values are requested by the user application.
At this time the only mask value defined is RTEXT_FILTER_VF to
indicate that the user wants the ifinfo dump to send information
about the VFs belonging to the interface.

This patch fixes a bug in which certain applications do not have
large enough buffers to accommodate the extra information returned
by the kernel with large numbers of SR-IOV virtual functions.
Those applications will not send the new netlink attribute with
the interface info dump request netlink messages so they will
not get unexpectedly large request buffers returned by the kernel.

Modifies the rtnl_calcit function to traverse the list of net
devices and compute the minimum buffer size that can hold the
info dumps of all matching devices based upon the filter passed
in via the new netlink attribute filter mask.  If no filter
mask is sent then the buffer allocation defaults to NLMSG_GOODSIZE.

With this change it is possible to add yet to be defined netlink
attributes to the dump request which should make it fairly extensible
in the future.

Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
Acked-by: Greg Rose <gregory.v.rose@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
[bwh: Backported to 3.0:
 - Adjust context
 - Drop the change in do_setlink() that reverts commit f18da1456581
   ('net: RTNETLINK adjusting values of min_ifinfo_dump_size'), which
   was never applied here]
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agortnetlink: Compute and store minimum ifinfo dump size
Greg Rose [Fri, 4 Jan 2013 00:32:54 +0000 (00:32 +0000)]
rtnetlink: Compute and store minimum ifinfo dump size

commit c7ac8679bec9397afe8918f788cbcef88c38da54 upstream.

The message size allocated for rtnl ifinfo dumps was limited to
a single page.  This is not enough for additional interface info
available with devices that support SR-IOV and caused a bug in
which VF info would not be displayed if more than approximately
40 VFs were created per interface.

Implement a new function pointer for the rtnl_register service that will
calculate the amount of data required for the ifinfo dump and allocate
enough data to satisfy the request.

Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Cc: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoACPI : do not use Lid and Sleep button for S5 wakeup
Zhang Rui [Tue, 4 Dec 2012 22:23:16 +0000 (23:23 +0100)]
ACPI : do not use Lid and Sleep button for S5 wakeup

commit b7e383046c2c7c13ad928cd7407eafff758ddd4b upstream.

When system enters power off, the _PSW of Lid device is enabled.
But this may cause the system to reboot instead of power off.

A proper way to fix this is to always disable lid wakeup capability for S5.

References: https://bugzilla.kernel.org/show_bug.cgi?id=35262
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: Joseph Salisbury <joseph.salisbury@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agox86, amd: Disable way access filter on Piledriver CPUs
Andre Przywara [Wed, 31 Oct 2012 16:20:50 +0000 (17:20 +0100)]
x86, amd: Disable way access filter on Piledriver CPUs

commit 2bbf0a1427c377350f001fbc6260995334739ad7 upstream.

The Way Access Filter in recent AMD CPUs may hurt the performance of
some workloads, caused by aliasing issues in the L1 cache.
This patch disables it on the affected CPUs.

The issue is similar to that one of last year:
http://lkml.indiana.edu/hypermail/linux/kernel/1107.3/00041.html
This new patch does not replace the old one, we just need another
quirk for newer CPUs.

The performance penalty without the patch depends on the
circumstances, but is a bit less than the last year's 3%.

The workloads affected would be those that access code from the same
physical page under different virtual addresses, so different
processes using the same libraries with ASLR or multiple instances of
PIE-binaries. The code needs to be accessed simultaneously from both
cores of the same compute unit.

More details can be found here:
http://developer.amd.com/Assets/SharedL1InstructionCacheonAMD15hCPU.pdf

CPUs affected are anything with the core known as Piledriver.
That includes the new parts of the AMD A-Series (aka Trinity) and the
just released new CPUs of the FX-Series (aka Vishera).
The model numbering is a bit odd here: FX CPUs have model 2,
A-Series has model 10h, with possible extensions to 1Fh. Hence the
range of model ids.

Signed-off-by: Andre Przywara <osp@andrep.de>
Link: http://lkml.kernel.org/r/1351700450-9277-1-git-send-email-osp@andrep.de
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Signed-off-by: CAI Qian <caiqian@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agothp, memcg: split hugepage for memcg oom on cow
David Rientjes [Tue, 29 May 2012 22:06:23 +0000 (15:06 -0700)]
thp, memcg: split hugepage for memcg oom on cow

commit 1f1d06c34f7675026326cd9f39ff91e4555cf355 upstream.

On COW, a new hugepage is allocated and charged to the memcg.  If the
system is oom or the charge to the memcg fails, however, the fault
handler will return VM_FAULT_OOM which results in an oom kill.

Instead, it's possible to fallback to splitting the hugepage so that the
COW results only in an order-0 page being allocated and charged to the
memcg which has a higher liklihood to succeed.  This is expensive
because the hugepage must be split in the page fault handler, but it is
much better than unnecessarily oom killing a process.

Signed-off-by: David Rientjes <rientjes@google.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <jweiner@redhat.com>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Michal Hocko <mhocko@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoudf: don't increment lenExtents while writing to a hole
Namjae Jeon [Tue, 9 Oct 2012 15:09:12 +0000 (00:09 +0900)]
udf: don't increment lenExtents while writing to a hole

commit fb719c59bdb4fca86ee1fd1f42ab3735ca12b6b2 upstream.

Incrementing lenExtents even while writing to a hole is bad
for performance as calls to udf_discard_prealloc and
udf_truncate_tail_extent would not return from start if
isize != lenExtents

Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Ashish Sangwan <a.sangwan@samsung.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Shuah Khan <shuah.khan@hp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoudf: fix memory leak while allocating blocks during write
Namjae Jeon [Tue, 9 Oct 2012 15:08:56 +0000 (00:08 +0900)]
udf: fix memory leak while allocating blocks during write

commit 2fb7d99d0de3fd8ae869f35ab682581d8455887a upstream.

Need to brelse the buffer_head stored in cur_epos and next_epos.

Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Ashish Sangwan <a.sangwan@samsung.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Shuah Khan <shuah.khan@hp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoaoe: do not call bdi_init after blk_alloc_queue
Ed Cashin [Sat, 12 Jan 2013 11:43:35 +0000 (06:43 -0500)]
aoe: do not call bdi_init after blk_alloc_queue

commit 0a41409c518083133e79015092585d68915865be upstream, but doesn't
apply, so this version is different for older kernels than 3.7.x

blk_alloc_queue has already done a bdi_init, so do not bdi_init
again in aoeblk_gdalloc.  The extra call causes list corruption
in the per-CPU backing dev info stats lists.

Affected users see console WARNINGs about list_del corruption on
percpu_counter_destroy when doing "rmmod aoe" or "aoeflush -a"
when AoE targets have been detected and initialized by the
system.

The patch below applies to v3.6.11, with its v47 aoe driver.  It
is expected to apply to all currently maintained stable kernels
except 3.7.y.  A related but different fix has been posted for
3.7.y.

References:

  RedHat bugzilla ticket with original report
  https://bugzilla.redhat.com/show_bug.cgi?id=853064

  LKML discussion of bug and fix
  http://thread.gmane.org/gmane.linux.kernel/1416336/focus=1416497

Reported-by: Josh Boyer <jwboyer@redhat.com>
Signed-off-by: Ed Cashin <ecashin@coraid.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoext4: lock i_mutex when truncating orphan inodes
Theodore Ts'o [Thu, 27 Dec 2012 06:42:48 +0000 (01:42 -0500)]
ext4: lock i_mutex when truncating orphan inodes

commit 721e3eba21e43532e438652dd8f1fcdfce3187e7 upstream.

Commit c278531d39 added a warning when ext4_flush_unwritten_io() is
called without i_mutex being taken.  It had previously not been taken
during orphan cleanup since races weren't possible at that point in
the mount process, but as a result of this c278531d39, we will now see
a kernel WARN_ON in this case.  Take the i_mutex in
ext4_orphan_cleanup() to suppress this warning.

Reported-by: Alexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Reviewed-by: Zheng Liu <wenqing.lz@taobao.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoext4: do not try to write superblock on ro remount w/o journal
Michael Tokarev [Tue, 25 Dec 2012 19:08:16 +0000 (14:08 -0500)]
ext4: do not try to write superblock on ro remount w/o journal

commit d096ad0f79a782935d2e06ae8fb235e8c5397775 upstream.

When a journal-less ext4 filesystem is mounted on a read-only block
device (blockdev --setro will do), each remount (for other, unrelated,
flags, like suid=>nosuid etc) results in a series of scary messages
from kernel telling about I/O errors on the device.

This is becauese of the following code ext4_remount():

       if (sbi->s_journal == NULL)
                ext4_commit_super(sb, 1);

at the end of remount procedure, which forces writing (flushing) of
a superblock regardless whenever it is dirty or not, if the filesystem
is readonly or not, and whenever the device itself is readonly or not.

We only need call ext4_commit_super when the file system had been
previously mounted read/write.

Thanks to Eric Sandeen for help in diagnosing this issue.

Signed-off-By: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agojbd2: fix assertion failure in jbd2_journal_flush()
Jan Kara [Fri, 21 Dec 2012 05:15:51 +0000 (00:15 -0500)]
jbd2: fix assertion failure in jbd2_journal_flush()

commit d7961c7fa4d2e3c3f12be67e21ba8799b5a7238a upstream.

The following race is possible between start_this_handle() and someone
calling jbd2_journal_flush().

Process A                              Process B
start_this_handle().
  if (journal->j_barrier_count) # false
  if (!journal->j_running_transaction) { #true
    read_unlock(&journal->j_state_lock);
                                       jbd2_journal_lock_updates()
                                       jbd2_journal_flush()
                                         write_lock(&journal->j_state_lock);
                                         if (journal->j_running_transaction) {
                                           # false
                                         ... wait for committing trans ...
                                         write_unlock(&journal->j_state_lock);
    ...
    write_lock(&journal->j_state_lock);
    if (!journal->j_running_transaction) { # true
      jbd2_get_transaction(journal, new_transaction);
    write_unlock(&journal->j_state_lock);
    goto repeat; # eventually blocks on j_barrier_count > 0
                                         ...
                                         J_ASSERT(!journal->j_running_transaction);
                                           # fails

We fix the race by rechecking j_barrier_count after reacquiring j_state_lock
in exclusive mode.

Reported-by: yjwsignal@empal.com
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoext4: fix extent tree corruption caused by hole punch
Forrest Liu [Mon, 17 Dec 2012 14:55:39 +0000 (09:55 -0500)]
ext4: fix extent tree corruption caused by hole punch

commit c36575e663e302dbaa4d16b9c72d2c9a913a9aef upstream.

When depth of extent tree is greater than 1, logical start value of
interior node is not correctly updated in ext4_ext_rm_idx.

Signed-off-by: Forrest Liu <forrestl@synology.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Reviewed-by: Ashish Sangwan <ashishsangwan2@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agovideo: mxsfb: fix crash when unblanking the display
Lothar Waßmann [Thu, 22 Nov 2012 12:49:14 +0000 (13:49 +0100)]
video: mxsfb: fix crash when unblanking the display

commit 6c1ecba8d84841277d68140ef485335d5be28485 upstream.

The VDCTRL4 register does not provide the MXS SET/CLR/TOGGLE feature.
The write in mxsfb_disable_controller() sets the data_cnt for the LCD
DMA to 0 which obviously means the max. count for the LCD DMA and
leads to overwriting arbitrary memory when the display is unblanked.

Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de>
Acked-by: Juergen Beisert <jbe@pengutronix.de>
Tested-by: Lauri Hintsala <lauri.hintsala@bluegiga.net>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: vt6656: 64bit fixes: vCommandTimerWait change calculation of timer.
Malcolm Priestley [Sun, 11 Nov 2012 16:07:57 +0000 (16:07 +0000)]
staging: vt6656: 64bit fixes: vCommandTimerWait change calculation of timer.

commit 70e227790d4ee4590023d8041a3485f8053593fc upstream.

The timer appears to run too fast/race on 64 bit systems.

Using msecs_to_jiffies seems to cause a deadlock on 64 bit.

A calculation of (MSecond * HZ) / 1000 appears to run satisfactory.

Change BSSIDInfoCount to u32.

After this patch the driver can be successfully connect on little endian 64/32 bit systems.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: vt6656: 64bit fixes: key.c/h change unsigned long to u32
Malcolm Priestley [Sun, 11 Nov 2012 15:49:59 +0000 (15:49 +0000)]
staging: vt6656: 64bit fixes: key.c/h change unsigned long to u32

commit c0d05b305b00c698b0a8c1b3d46c9380bce9db45 upstream.

Fixes long issues.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: vt6656: 64 bit fixes: fix long warning messages.
Malcolm Priestley [Sun, 11 Nov 2012 15:45:52 +0000 (15:45 +0000)]
staging: vt6656: 64 bit fixes: fix long warning messages.

commit b4dc03af5513774277c9c36b12a25cd3f25f4404 upstream.

Fixes long warning messages from patch
[PATCH 08/14] staging: vt6656: 64 bit fixes : correct all type sizes

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: vt6656: 64 bit fixes : correct all type sizes
Malcolm Priestley [Sun, 11 Nov 2012 15:41:25 +0000 (15:41 +0000)]
staging: vt6656: 64 bit fixes : correct all type sizes

commit 7730492855a2f9c828599bcd8d62760f96d319e4 upstream.

After this patch all BYTE/WORD/DWORD types can be replaced with the appropriate u sizes.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: vt6656: 64 bit fixes: use u32 for QWORD definition.
Malcolm Priestley [Sun, 11 Nov 2012 15:32:05 +0000 (15:32 +0000)]
staging: vt6656: 64 bit fixes: use u32 for QWORD definition.

commit a552397d5e4ef0cc0bd3e9595d6acc9a3b381171 upstream.

Size of long issues replace with u32.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agostaging: vt6656: [BUG] out of bound array reference in RFbSetPower.
Malcolm Priestley [Sun, 7 Oct 2012 07:27:00 +0000 (08:27 +0100)]
staging: vt6656: [BUG] out of bound array reference in RFbSetPower.

commit ab1dd9963137a1e122004d5378a581bf16ae9bc8 upstream.

Calling RFbSetPower with uCH zero value will cause out of bound array reference.

This causes 64 bit kernels to oops on boot.

Note: Driver does not function on 64 bit kernels and should be
blacklisted on them.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agodm ioctl: prevent unsafe change to dm_ioctl data_size
Alasdair G Kergon [Fri, 21 Dec 2012 20:23:30 +0000 (20:23 +0000)]
dm ioctl: prevent unsafe change to dm_ioctl data_size

commit e910d7ebecd1aac43125944a8641b6cb1a0dfabe upstream.

Abort dm ioctl processing if userspace changes the data_size parameter
after we validated it but before we finished copying the data buffer
from userspace.

The dm ioctl parameters are processed in the following sequence:
 1. ctl_ioctl() calls copy_params();
 2. copy_params() makes a first copy of the fixed-sized portion of the
    userspace parameters into the local variable "tmp";
 3. copy_params() then validates tmp.data_size and allocates a new
    structure big enough to hold the complete data and copies the whole
    userspace buffer there;
 4. ctl_ioctl() reads userspace data the second time and copies the whole
    buffer into the pointer "param";
 5. ctl_ioctl() reads param->data_size without any validation and stores it
    in the variable "input_param_size";
 6. "input_param_size" is further used as the authoritative size of the
    kernel buffer.

The problem is that userspace code could change the contents of user
memory between steps 2 and 4.  In particular, the data_size parameter
can be changed to an invalid value after the kernel has validated it.
This lets userspace force the kernel to access invalid kernel memory.

The fix is to ensure that the size has not changed at step 4.

This patch shouldn't have a security impact because CAP_SYS_ADMIN is
required to run this code, but it should be fixed anyway.

Reported-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoring-buffer: Fix race between integrity check and readers
Steven Rostedt [Fri, 30 Nov 2012 03:31:16 +0000 (22:31 -0500)]
ring-buffer: Fix race between integrity check and readers

commit 9366c1ba13fbc41bdb57702e75ca4382f209c82f upstream.

The function rb_check_pages() was added to make sure the ring buffer's
pages were sane. This check is done when the ring buffer size is modified
as well as when the iterator is released (closing the "trace" file),
as that was considered a non fast path and a good place to do a sanity
check.

The problem is that the check does not have any locks around it.
If one process were to read the trace file, and another were to read
the raw binary file, the check could happen while the reader is reading
the file.

The issues with this is that the check requires to clear the HEAD page
before doing the full check and it restores it afterward. But readers
require the HEAD page to exist before it can read the buffer, otherwise
it gives a nasty warning and disables the buffer.

By adding the reader lock around the check, this keeps the race from
happening.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoRDMA/nes: Fix for terminate timer crash
Tatyana Nikolova [Thu, 6 Dec 2012 19:58:27 +0000 (19:58 +0000)]
RDMA/nes: Fix for terminate timer crash

commit 7bfcfa51c35cdd2d37e0d70fc11790642dd11fb3 upstream.

The terminate timer needs to be initialized just once.

Signed-off-by: Tatyana Nikolova <Tatyana.E.Nikolova@intel.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Signed-off-by: CAI Qian <caiqian@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoRDMA/nes: Fix for crash when registering zero length MR for CQ
Tatyana Nikolova [Thu, 6 Dec 2012 20:05:02 +0000 (20:05 +0000)]
RDMA/nes: Fix for crash when registering zero length MR for CQ

commit 7d9c199a55200c9b9fcad08e150470d02fb385be upstream.

Signed-off-by: Tatyana Nikolova <Tatyana.E.Nikolova@intel.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Signed-off-by: CAI Qian <caiqian@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agodrm/i915: make the panel fitter work on pipes B and C on IVB
Paulo Zanoni [Tue, 20 Nov 2012 15:27:41 +0000 (13:27 -0200)]
drm/i915: make the panel fitter work on pipes B and C on IVB

commit 13888d78c664a1f61d7b09d282f5916993827a40 upstream.

I actually found this problem on Haswell, but then discovered Ivy
Bridge also has it by reading the spec.

I don't have the hardware to test this.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoi2400m: add Intel 6150 device IDs
Dan Williams [Fri, 14 Dec 2012 13:10:50 +0000 (13:10 +0000)]
i2400m: add Intel 6150 device IDs

commit 999a7c5776a0ed2133645fa7e008bec05bda9254 upstream.

Add device IDs for WiMAX function of Intel 6150 cards.

Signed-off-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agojffs2: hold erase_completion_lock on exit
Alexey Khoroshilov [Mon, 5 Nov 2012 18:40:14 +0000 (22:40 +0400)]
jffs2: hold erase_completion_lock on exit

commit 2cbba75a56ea78e6876b4e2547a882f10b3fe72b upstream.

Users of jffs2_do_reserve_space() expect they still held
erase_completion_lock after call to it. But there is a path
where jffs2_do_reserve_space() leaves erase_completion_lock unlocked.
The patch fixes it.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoSUNRPC: Ensure that we free the rpc_task after cleanups are done
Trond Myklebust [Fri, 4 Jan 2013 17:23:21 +0000 (12:23 -0500)]
SUNRPC: Ensure that we free the rpc_task after cleanups are done

commit c6567ed1402c55e19b012e66a8398baec2a726f3 upstream.

This patch ensures that we free the rpc_task after the cleanup callbacks
are done in order to avoid a deadlock problem that can be triggered if
the callback needs to wait for another workqueue item to complete.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: Weston Andros Adamson <dros@netapp.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Bruce Fields <bfields@fieldses.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>