media: v4l2-mem2mem: fix epoll() by calling poll_wait first

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The epoll function expects that whenever the poll file op is
called, the poll_wait function is also called. That didn't
always happen in v4l2_m2m_poll(). Fix this, otherwise
epoll() would timeout when it shouldn't.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

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Hans Verkuil 2019-02-07 06:49:45 -05:00 • committed by Mauro Carvalho Chehab

parent 398d768025

commit dd8695e4e1

1 changed files with 7 additions and 12 deletions

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drivers/media/v4l2-core/v4l2-mem2mem.c

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