media: videobuf2-v4l2: refuse qbuf if queue uses requests or vv.

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Check if the vb2 queue uses requests, and if so refuse to
add buffers that are not part of a request. Also check for
the reverse: a vb2 queue did not use requests, and an attempt
was made to queue a buffer to a request.

We might relax this in the future, but for now just return
-EPERM in that case.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

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Hans Verkuil 2018-05-23 08:09:23 -04:00 • committed by Mauro Carvalho Chehab

parent 61add367dd

commit 9ac8090fda

1 changed files with 9 additions and 1 deletions

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drivers/media/common/videobuf2/videobuf2-v4l2.c

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