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media: v4l2-compat-ioctl32.c: add missing VIDIOC_PREPARE_BUF

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commit 3ee6d040719ae09110e5cdf24d5386abe5d1b776 upstream.

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>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Hans Verkuil 2018-02-14 12:52:29 +01:00 committed by Greg Kroah-Hartman
parent 587a6b8324
commit 4a85bbbcb5
1 changed files with 1 additions and 0 deletions
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drivers/media/v4l2-core/v4l2-compat-ioctl32.c
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@ -1022,6 +1022,7 @@ 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: