From: Hans Verkuil hans.verkuil@cisco.com
This patch has been added to the 4.1 stable tree. If you have any objections, please let us know.
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[ Upstream commit 3ee6d040719ae09110e5cdf24d5386abe5d1b776 ]
The result of the VIDIOC_PREPARE_BUF ioctl was never copied back to userspace since it was missing in the switch.
Signed-off-by: Hans Verkuil hans.verkuil@cisco.com Acked-by: Sakari Ailus sakari.ailus@linux.intel.com Cc: stable@vger.kernel.org # for v4.15 and up Signed-off-by: Mauro Carvalho Chehab mchehab@s-opensource.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com --- drivers/media/v4l2-core/v4l2-compat-ioctl32.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/media/v4l2-core/v4l2-compat-ioctl32.c b/drivers/media/v4l2-core/v4l2-compat-ioctl32.c index 4f002d0bebb1..42d402948ea2 100644 --- a/drivers/media/v4l2-core/v4l2-compat-ioctl32.c +++ b/drivers/media/v4l2-core/v4l2-compat-ioctl32.c @@ -999,6 +999,7 @@ static long do_video_ioctl(struct file *file, unsigned int cmd, unsigned long ar err = put_v4l2_create32(&karg.v2crt, up); break;
+ case VIDIOC_PREPARE_BUF: case VIDIOC_QUERYBUF: case VIDIOC_QBUF: case VIDIOC_DQBUF: