[PATCH] gspca-core: Fix buffers staying in queued state after a stream_off

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This fixes a regression introduced by commit f7059ea and should be
backported to all supported stable kernels which have this commit.

Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx>
Tested-by: Antonio Ospite <ospite@xxxxxxxxxxxxxxxxx>
CC: stable@xxxxxxxxxxxxxxx
---
 drivers/media/video/gspca/gspca.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/media/video/gspca/gspca.c b/drivers/media/video/gspca/gspca.c
index 137166d..31721ea 100644
--- a/drivers/media/video/gspca/gspca.c
+++ b/drivers/media/video/gspca/gspca.c
@@ -1653,7 +1653,7 @@ static int vidioc_streamoff(struct file *file, void *priv,
 				enum v4l2_buf_type buf_type)
 {
 	struct gspca_dev *gspca_dev = video_drvdata(file);
-	int ret;
+	int i, ret;
 
 	if (buf_type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
 		return -EINVAL;
@@ -1678,6 +1678,8 @@ static int vidioc_streamoff(struct file *file, void *priv,
 	wake_up_interruptible(&gspca_dev->wq);
 
 	/* empty the transfer queues */
+	for (i = 0; i < gspca_dev->nframes; i++)
+		gspca_dev->frame[i].v4l2_buf.flags &= ~BUF_ALL_FLAGS;
 	atomic_set(&gspca_dev->fr_q, 0);
 	atomic_set(&gspca_dev->fr_i, 0);
 	gspca_dev->fr_o = 0;
-- 
1.7.10

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