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[media] v4l2-ioctl.c: handle PREPARE_BUF like QUERYBUF

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The core code for PREPARE_BUF didn't take the multiplanar case into account,
which might cause page faults. Handle PREPARE_BUF just like QUERYBUF and
QBUF/DQBUF.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Hans Verkuil 2012-09-19 10:14:41 -03:00 • committed by Mauro Carvalho Chehab
parent 3c0b606181
commit 96b1a70226
1 changed files with 1 additions and 0 deletions
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drivers/media/v4l2-core/v4l2-ioctl.c
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@ -2188,6 +2188,7 @@ static int check_array_args(unsigned int cmd, void *parg, size_t *array_size,
int ret = 0;
switch (cmd) {
case VIDIOC_PREPARE_BUF:
case VIDIOC_QUERYBUF:
case VIDIOC_QBUF:
case VIDIOC_DQBUF: {