usb: ehci-exynos: Return immediately from suspend if ehci_suspend fails
authorVivek Gautam <gautam.vivek@samsung.com>
Thu, 10 Apr 2014 10:28:01 +0000 (15:58 +0530)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 16 Apr 2014 20:59:13 +0000 (13:59 -0700)
commitd72175103f25783b0504f864a4f381621a789ca2
treef0f4b179728e7596c02c058f65a2b624d5be79f2
parenta2ff864b53eac9a0e9b05bfe9d1781ccd6c2af71
usb: ehci-exynos: Return immediately from suspend if ehci_suspend fails

Patch 'b8efdaf USB: EHCI: add check for wakeup/suspend race'
adds a check for possible race between suspend and wakeup interrupt,
and thereby it returns -EBUSY as error code if there's a wakeup
interrupt.
So the platform host controller should not proceed further with
its suspend callback, rather should return immediately to avoid
powering down the essential things, like phy.

Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/usb/host/ehci-exynos.c