From e5b35420ef7e6dc92a6cc5914bc9e5e5c1d48819 Mon Sep 17 00:00:00 2001 From: Fengguang Wu Date: Sun, 29 Jul 2012 19:39:09 +0800 Subject: [PATCH] ALSA: es1688 - freeup resources on init failure This will fix the following oops: [ 6.169981] genirq: Flags mismatch irq 5. 00000000 (ES1688) vs. 00000000 (ES1688) [ 6.170851] Pid: 1, comm: swapper Not tainted 3.5.0-00004-gceee0e9 #14 [ 6.170851] Call Trace: [ 6.170851] [] ? __setup_irq+0x3c7/0x420 [ 6.170851] [] ? request_threaded_irq+0x76/0x140 [ 6.170851] [] ? snd_es1688_ioctl+0x10/0x10 [ 6.170851] [] ? request_threaded_irq+0xb2/0x140 [ 6.170851] [] ? snd_es1688_create+0x96/0x330 [ 6.170851] [] ? snd_gusextreme_probe+0x18d/0x5a2 [ 6.170851] [] ? __driver_attach+0x80/0x80 [ 6.170851] [] ? sysfs_create_link+0xf/0x20 [ 6.170851] [] ? __driver_attach+0x80/0x80 [ 6.170851] [] ? isa_bus_probe+0x12/0x20 [ 6.170851] [] ? driver_probe_device+0x55/0x1c0 [ 6.170851] [] ? _raw_spin_unlock+0xf/0x30 [ 6.170851] [] ? klist_next+0x6a/0xe0 [ 6.170851] [] ? isa_bus_match+0x21/0x40 [ 6.170851] [] ? bus_for_each_drv+0x34/0x70 [ 6.170851] [] ? device_attach+0x7b/0x90 [ 6.170851] [] ? __driver_attach+0x80/0x80 [ 6.170851] [] ? bus_probe_device+0x5f/0x80 [ 6.170851] [] ? device_add+0x573/0x620 [ 6.170851] [] ? complete_all+0x40/0x60 [ 6.170851] [] ? _raw_spin_unlock_irqrestore+0x1a/0x30 [ 6.170851] [] ? isa_register_driver+0xb6/0x150 [ 6.170851] [] ? alsa_card_gusmax_init+0xf/0xf [ 6.170851] [] ? do_one_initcall+0x7f/0x12b [ 6.170851] [] ? kernel_init+0x112/0x1a9 [ 6.170851] [] ? do_early_param+0x77/0x77 [ 6.170851] [] ? do_one_initcall+0x12b/0x12b [ 6.170851] [] ? kernel_thread_helper+0x6/0xd [ 6.190170] es1688: can't grab IRQ 5 [ 6.190613] genirq: Flags mismatch irq 5. 00000000 (ES1688) vs. 00000000 (ES1688) [ 6.191566] Pid: 1, comm: swapper Not tainted 3.5.0-00004-gceee0e9 #14 [ 6.192394] Call Trace: [ 6.192685] [] ? __setup_irq+0x3c7/0x420 [ 6.193342] [] ? request_threaded_irq+0x76/0x140 [ 6.194081] [] ? snd_es1688_ioctl+0x10/0x10 [ 6.194607] [] ? request_threaded_irq+0xb2/0x140 [ 6.194607] [] ? snd_es1688_create+0x96/0x330 [ 6.194607] [] ? snd_gusextreme_probe+0x18d/0x5a2 [ 6.194607] [] ? __driver_attach+0x80/0x80 [ 6.194607] [] ? sysfs_create_link+0xf/0x20 [ 6.194607] [] ? __driver_attach+0x80/0x80 [ 6.194607] [] ? isa_bus_probe+0x12/0x20 [ 6.194607] [] ? driver_probe_device+0x55/0x1c0 [ 6.194607] [] ? _raw_spin_unlock+0xf/0x30 [ 6.194607] [] ? klist_next+0x6a/0xe0 [ 6.194607] [] ? isa_bus_match+0x21/0x40 [ 6.194607] [] ? bus_for_each_drv+0x34/0x70 [ 6.194607] [] ? device_attach+0x7b/0x90 [ 6.194607] [] ? __driver_attach+0x80/0x80 [ 6.194607] [] ? bus_probe_device+0x5f/0x80 [ 6.194607] [] ? device_add+0x573/0x620 [ 6.194607] [] ? complete_all+0x40/0x60 [ 6.194607] [] ? _raw_spin_unlock_irqrestore+0x1a/0x30 [ 6.194607] [] ? isa_register_driver+0xb6/0x150 [ 6.194607] [] ? alsa_card_gusmax_init+0xf/0xf [ 6.194607] [] ? do_one_initcall+0x7f/0x12b [ 6.194607] [] ? kernel_init+0x112/0x1a9 [ 6.194607] [] ? do_early_param+0x77/0x77 [ 6.194607] [] ? do_one_initcall+0x12b/0x12b [ 6.194607] [] ? kernel_thread_helper+0x6/0xd [ 6.210779] es1688: can't grab IRQ 5 [ 6.211305] gusextreme: probe of gusextreme.0 failed with error -16 Signed-off-by: Daniel Mack Signed-off-by: Fengguang Wu Signed-off-by: Takashi Iwai --- include/sound/es1688.h | 1 + sound/isa/es1688/es1688_lib.c | 34 +++++++++++++++++++++++----------- 2 files changed, 24 insertions(+), 11 deletions(-) diff --git a/include/sound/es1688.h b/include/sound/es1688.h index 3ec7ecbe2502..f752dd33dfaf 100644 --- a/include/sound/es1688.h +++ b/include/sound/es1688.h @@ -29,6 +29,7 @@ #define ES1688_HW_AUTO 0x0000 #define ES1688_HW_688 0x0001 #define ES1688_HW_1688 0x0002 +#define ES1688_HW_UNDEF 0x0003 struct snd_es1688 { unsigned long port; /* port of ESS chip */ diff --git a/sound/isa/es1688/es1688_lib.c b/sound/isa/es1688/es1688_lib.c index 1d47be8170b5..b3b4f15e45ba 100644 --- a/sound/isa/es1688/es1688_lib.c +++ b/sound/isa/es1688/es1688_lib.c @@ -612,10 +612,10 @@ static int snd_es1688_capture_close(struct snd_pcm_substream *substream) static int snd_es1688_free(struct snd_es1688 *chip) { - if (chip->res_port) { + if (chip->hardware != ES1688_HW_UNDEF) snd_es1688_init(chip, 0); + if (chip->res_port) release_and_free_resource(chip->res_port); - } if (chip->irq >= 0) free_irq(chip->irq, (void *) chip); if (chip->dma8 >= 0) { @@ -657,19 +657,27 @@ int snd_es1688_create(struct snd_card *card, return -ENOMEM; chip->irq = -1; chip->dma8 = -1; + chip->hardware = ES1688_HW_UNDEF; - if ((chip->res_port = request_region(port + 4, 12, "ES1688")) == NULL) { + chip->res_port = request_region(port + 4, 12, "ES1688"); + if (chip->res_port == NULL) { snd_printk(KERN_ERR "es1688: can't grab port 0x%lx\n", port + 4); - return -EBUSY; + err = -EBUSY; + goto exit; } - if (request_irq(irq, snd_es1688_interrupt, 0, "ES1688", (void *) chip)) { + + err = request_irq(irq, snd_es1688_interrupt, 0, "ES1688", (void *) chip); + if (err < 0) { snd_printk(KERN_ERR "es1688: can't grab IRQ %d\n", irq); - return -EBUSY; + goto exit; } + chip->irq = irq; - if (request_dma(dma8, "ES1688")) { + err = request_dma(dma8, "ES1688"); + + if (err < 0) { snd_printk(KERN_ERR "es1688: can't grab DMA8 %d\n", dma8); - return -EBUSY; + goto exit; } chip->dma8 = dma8; @@ -685,14 +693,18 @@ int snd_es1688_create(struct snd_card *card, err = snd_es1688_probe(chip); if (err < 0) - return err; + goto exit; err = snd_es1688_init(chip, 1); if (err < 0) - return err; + goto exit; /* Register device */ - return snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops); + err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops); +exit: + if (err) + snd_es1688_free(chip); + return err; } static struct snd_pcm_ops snd_es1688_playback_ops = { -- 2.34.1