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| author | Hans Verkuil <hans.verkuil@cisco.com> | 2011-07-13 04:03:52 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-03-27 11:41:33 -0300 |
| commit | 0e17e9a9f6bfedb6aefcd88632f5d6d17c871176 (patch) | |
| tree | 0ff2a1e10ffbe46248f1cc8077adcc29518f3f43 /drivers/media/video/videobuf-core.c | |
| parent | bf5c7cbb996d6af51f8cc18a30ffa426196bf840 (diff) | |
| download | linux-0e17e9a9f6bfedb6aefcd88632f5d6d17c871176.tar.gz | |
[media] videobuf: only start streaming in poll() if so requested by the poll mask
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/videobuf-core.c')
| -rw-r--r-- | drivers/media/video/videobuf-core.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/media/video/videobuf-core.c b/drivers/media/video/videobuf-core.c index de4fa4eb8844..ffdf59cfe405 100644 --- a/drivers/media/video/videobuf-core.c +++ b/drivers/media/video/videobuf-core.c @@ -1129,6 +1129,7 @@ unsigned int videobuf_poll_stream(struct file *file, struct videobuf_queue *q, poll_table *wait) { + unsigned long req_events = poll_requested_events(wait); struct videobuf_buffer *buf = NULL; unsigned int rc = 0; @@ -1137,7 +1138,7 @@ unsigned int videobuf_poll_stream(struct file *file, if (!list_empty(&q->stream)) buf = list_entry(q->stream.next, struct videobuf_buffer, stream); - } else { + } else if (req_events & (POLLIN | POLLRDNORM)) { if (!q->reading) __videobuf_read_start(q); if (!q->reading) { |