Hi,
if the video-device (saa7146 on a FF card) was open for capturing, the close call doesn't release the capture buffers.
The attached patch may fix this problem. Possible there is more cleanup necessary.
- Hartmut
signed-off-by: Hartmut Birr <e9hack@xxxxxxxxx>
- Release the capture buffers on device close
diff -r 1109998234b4 linux/drivers/media/common/saa7146_video.c
--- a/linux/drivers/media/common/saa7146_video.c Fri Mar 30 10:58:01 2007 -0300
+++ b/linux/drivers/media/common/saa7146_video.c Sat Mar 31 19:50:55 2007 +0200
@@ -1429,6 +1429,7 @@ static void video_close(struct saa7146_d
{
struct saa7146_fh *fh = (struct saa7146_fh *)file->private_data;
struct saa7146_vv *vv = dev->vv_data;
+ struct videobuf_queue *q = &fh->video_q;
int err;
if (IS_CAPTURE_ACTIVE(fh) != 0) {
@@ -1436,6 +1437,11 @@ static void video_close(struct saa7146_d
} else if (IS_OVERLAY_ACTIVE(fh) != 0) {
err = saa7146_stop_preview(fh);
}
+
+ // release all capture buffers
+ mutex_lock(&q->lock);
+ videobuf_read_stop(q);
+ mutex_unlock(&q->lock);
/* hmm, why is this function declared void? */
/* return err */
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