diff options
| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-06-18 11:16:55 +1000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-06-18 11:16:55 +1000 |
| commit | 4b337c5f245b6587ba844ac7bb13c313a2912f7b (patch) | |
| tree | 999c6a6580b76a083c8efb9dabff709d1c49fcd0 /drivers/media/video/saa7134/saa7134-video.c | |
| parent | 492b057c426e4aa747484958e18e9da29003985d (diff) | |
| parent | 3fe0344faf7fdcb158bd5c1a9aec960a8d70c8e8 (diff) | |
Merge commit 'origin/master' into next
Diffstat (limited to 'drivers/media/video/saa7134/saa7134-video.c')
| -rw-r--r-- | drivers/media/video/saa7134/saa7134-video.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/media/video/saa7134/saa7134-video.c b/drivers/media/video/saa7134/saa7134-video.c index 493cad941460..e305c1674cee 100644 --- a/drivers/media/video/saa7134/saa7134-video.c +++ b/drivers/media/video/saa7134/saa7134-video.c @@ -1057,6 +1057,7 @@ static int buffer_prepare(struct videobuf_queue *q, buf->vb.field = field; buf->fmt = fh->fmt; buf->pt = &fh->pt_cap; + dev->video_q.curr = NULL; err = videobuf_iolock(q,&buf->vb,&dev->ovbuf); if (err) @@ -1423,11 +1424,13 @@ video_poll(struct file *file, struct poll_table_struct *wait) { struct saa7134_fh *fh = file->private_data; struct videobuf_buffer *buf = NULL; + unsigned int rc = 0; if (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type) return videobuf_poll_stream(file, &fh->vbi, wait); if (res_check(fh,RESOURCE_VIDEO)) { + mutex_lock(&fh->cap.vb_lock); if (!list_empty(&fh->cap.stream)) buf = list_entry(fh->cap.stream.next, struct videobuf_buffer, stream); } else { @@ -1446,13 +1449,14 @@ video_poll(struct file *file, struct poll_table_struct *wait) } if (!buf) - return POLLERR; + goto err; poll_wait(file, &buf->done, wait); if (buf->state == VIDEOBUF_DONE || buf->state == VIDEOBUF_ERROR) - return POLLIN|POLLRDNORM; - return 0; + rc = POLLIN|POLLRDNORM; + mutex_unlock(&fh->cap.vb_lock); + return rc; err: mutex_unlock(&fh->cap.vb_lock); |