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[media] v4l2-ioctl.c: fix overlay support 

The vidioc_overlay op needs an unsigned int, not an unsigned int pointer.
So we need a small function that dereferences the unsigned int pointer.

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 2012-09-04 10:08:01 -03:00 committed by Mauro Carvalho Chehab
parent f39a0dd62a
commit 737c097b9a
1 changed files with 7 additions and 1 deletions
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8
drivers/media/v4l2-core/v4l2-ioctl.c
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@ -1422,6 +1422,12 @@ static int v4l_s_hw_freq_seek(const struct v4l2_ioctl_ops *ops,
return ops->vidioc_s_hw_freq_seek(file, fh, p);
}
static int v4l_overlay(const struct v4l2_ioctl_ops *ops,
struct file *file, void *fh, void *arg)
{
return ops->vidioc_overlay(file, fh, *(unsigned int *)arg);
}
static int v4l_reqbufs(const struct v4l2_ioctl_ops *ops,
struct file *file, void *fh, void *arg)
{
@ -1953,7 +1959,7 @@ static struct v4l2_ioctl_info v4l2_ioctls[] = {
IOCTL_INFO_FNC(VIDIOC_QUERYBUF, v4l_querybuf, v4l_print_buffer, INFO_FL_QUEUE | INFO_FL_CLEAR(v4l2_buffer, length)),
IOCTL_INFO_STD(VIDIOC_G_FBUF, vidioc_g_fbuf, v4l_print_framebuffer, 0),
IOCTL_INFO_STD(VIDIOC_S_FBUF, vidioc_s_fbuf, v4l_print_framebuffer, INFO_FL_PRIO),
IOCTL_INFO_STD(VIDIOC_OVERLAY, vidioc_overlay, v4l_print_u32, INFO_FL_PRIO),
IOCTL_INFO_FNC(VIDIOC_OVERLAY, v4l_overlay, v4l_print_u32, INFO_FL_PRIO),
IOCTL_INFO_FNC(VIDIOC_QBUF, v4l_qbuf, v4l_print_buffer, INFO_FL_QUEUE),
IOCTL_INFO_FNC(VIDIOC_DQBUF, v4l_dqbuf, v4l_print_buffer, INFO_FL_QUEUE),
IOCTL_INFO_FNC(VIDIOC_STREAMON, v4l_streamon, v4l_print_buftype, INFO_FL_PRIO | INFO_FL_QUEUE),