V4L/DVB (7562): videobuf: Require spinlocks for all videobuf users

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A spinlock is necessary for queue_cancel to work with every driver in the tree.
Otherwise a race exists between IRQ handlers removing buffers from the queue
and queue_cancel invalidating the queue.

Signed-off-by: Brandon Philips <bphilips@suse.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

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Brandon Philips 2008-03-28 10:18:33 -07:00 • committed by Mauro Carvalho Chehab

parent aa9479ed50

commit 0cf4daee31

1 changed files with 18 additions and 28 deletions

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46

drivers/media/video/videobuf-core.c

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