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Subject: media: v4l2-compat-ioctl32.c: add missing VIDIOC_PREPARE_BUF Author: Hans Verkuil hans.verkuil@cisco.com Date: Wed Jan 24 08:37:04 2018 -0500

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

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 e48d59046086..76ed43e774dd 100644 --- a/drivers/media/v4l2-core/v4l2-compat-ioctl32.c +++ b/drivers/media/v4l2-core/v4l2-compat-ioctl32.c @@ -1052,6 +1052,7 @@ 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: