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[media] vb2: fix vb2_poll for output streams
authorHans Verkuil <hverkuil@xs4all.nl>
Thu, 24 Jul 2014 12:19:37 +0000 (09:19 -0300)
committerMauro Carvalho Chehab <m.chehab@samsung.com>
Fri, 25 Jul 2014 22:20:04 +0000 (19:20 -0300)
commit1612f20ea025f55741b2d6e8b9c91047a7324a76
treee63809b5b71c44fcf2d8df9ec48c9ae715078145tree
parentccf58cb4eac050ebe777cfcb209bc53d58f5fd79commit | diff
[media] vb2: fix vb2_poll for output streams

vb2_poll should always return POLLOUT | POLLWRNORM as long as there
are fewer buffers queued than there are buffers available. Poll for
an output stream should only wait if all buffers are queued and nobody
is dequeuing them.

Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
drivers/media/v4l2-core/videobuf2-core.c diff | blob | blame | history
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