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Commit 0e17e9a9 authored by Hans Verkuil's avatar Hans Verkuil Committed by Mauro Carvalho Chehab
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[media] videobuf: only start streaming in poll() if so requested by the poll mask 



Signed-off-by: default avatarHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: default avatarHans de Goede <hdegoede@redhat.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent bf5c7cbb

drivers/media/video/videobuf-core.c

+2 −1
Original line number Diff line number Diff line
@@ -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) {