V4L/DVB (4928): Usbvision_v4l2 robustness on disconnect

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This patch corrects 2 bugs (causes kernel oops) that occur when
unplugging the peripheral whereas nobody has opened it yet :
- do not call usbvision_stop_isoc if usbvision_init_isoc has not been called
- do not call wakeup_interruptible on waitqueues that did not have been
initialized with init_waitqueue_head

Signed-off-by: Thierry MERLE <thierry.merle@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

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Thierry 2006-12-04 08:31:17 -03:00 • committed by Mauro Carvalho Chehab

parent f2242ee547

commit 5f7fb877be

2 changed files with 12 additions and 12 deletions

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17

drivers/media/video/usbvision/usbvision-core.c

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7

drivers/media/video/usbvision/usbvision.h

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