[ 165/187] gspca-core: Fix buffers staying in queued state after a stream_off

Greg Kroah-Hartman
2012-07-12T22:51:56Z

From: Hans de Goede <hdegoede@redhat.com>

commit af05ef01e9cde84620c6855a8d8ab9c8a1db9009 upstream.

[Backport to linux-stable by Antonio Ospite <ospite@studenti.unina.it>]

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

Signed-off-by: Antonio Ospite <ospite@studenti.unina.it>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Antonio Ospite <ospite@studenti.unina.it>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
drivers/media/video/gspca/gspca.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

--- a/drivers/media/video/gspca/gspca.c
+++ b/drivers/media/video/gspca/gspca.c
@@ -1723,7 +1723,7 @@ static int vidioc_streamoff(struct file
enum v4l2_buf_type buf_type)
{
struct gspca_dev *gspca_dev = priv;
- int ret;
+ int i, ret;

if (buf_type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
return -EINVAL;
@@ -1754,6 +1754,8 @@ static int vidioc_streamoff(struct file
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;