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| author | Ming Qian <ming.qian@nxp.com> | 2022-06-15 04:19:20 +0100 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@kernel.org> | 2022-06-27 09:10:36 +0100 |
| commit | d4de27a9b1eadd33a2e40de87a646d1bf5fef756 (patch) | |
| tree | a424446b243c8133b20c97f3531f3402ea0fd3ac /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | 38c771014ce697322babf3ec29a7a686eaf24f64 (diff) | |
| download | linux-d4de27a9b1eadd33a2e40de87a646d1bf5fef756.tar.gz linux-d4de27a9b1eadd33a2e40de87a646d1bf5fef756.zip | |
media: v4l2-mem2mem: prevent pollerr when last_buffer_dequeued is set
If the last buffer was dequeued from the capture queue,
signal userspace. DQBUF(CAPTURE) will return -EPIPE.
But if output queue is empty and capture queue is empty,
v4l2_m2m_poll_for_data will return EPOLLERR,
This is very easy to happen in drain.
When last_buffer_dequeued is set, we shouldn't return EPOLLERR,
but return EPOLLIN | EPOLLRDNORM.
Fixes: 1698a7f151126 ("media: v4l2-mem2mem: simplify poll logic")
Signed-off-by: Ming Qian <ming.qian@nxp.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions