original_kernel/drivers
Hans Verkuil 9739768788 V4L/DVB: videobuf: prepare to make locking optional in videobuf
Currently videobuf uses the vb_lock mutex to lock its data structures.
But this locking will (optionally) move into the v4l2 core, which means
that in that case vb_lock shouldn't be used since the external lock is already
held.

Prepare for this by adding a pointer to such an external mutex and
don't lock if that pointer is set.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-10-21 01:06:14 -02:00
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media V4L/DVB: videobuf: prepare to make locking optional in videobuf 2010-10-21 01:06:14 -02:00
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staging V4L/DVB: Deprecate stradis driver 2010-10-21 01:06:13 -02:00
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