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

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@redhat.com>
Tested-by: Antonio Ospite <ospite@studenti.unina.it>
CC: stable@vger.kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/drivers/media/video/gspca/gspca.c b/drivers/media/video/gspca/gspca.c
index 137166d73945..31721eadc597 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;