system/linux
system/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux synced 2024-10-24 20:29:05 +00:00
Code Issues Packages Projects Releases Wiki Activity

[media] v4l2-ioctl.c: check vfl_type in ENUM_FMT

Browse source 
The other format ioctls (g/s/try_fmt) all check if the passed buffer type
makes sense for the device node's vfl_type. E.g. it makes no sense for a
VBI buffer type to be passed through a video node instead of a vbi node.

But this check was missing in ENUM_FMT which can cause a problem if you
have both video and sdr device nodes.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This commit is contained in:
Hans Verkuil 2014-07-12 07:54:26 -03:00 committed by Mauro Carvalho Chehab
parent d9cdebd0fa
commit ce71bbc91e
1 changed files with 8 additions and 6 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

14
drivers/media/v4l2-core/v4l2-ioctl.c
View file

@ -1098,32 +1098,34 @@ static int v4l_enum_fmt(const struct v4l2_ioctl_ops *ops,
{
struct v4l2_fmtdesc *p = arg;
struct video_device *vfd = video_devdata(file);
bool is_vid = vfd->vfl_type == VFL_TYPE_GRABBER;
bool is_sdr = vfd->vfl_type == VFL_TYPE_SDR;
bool is_rx = vfd->vfl_dir != VFL_DIR_TX;
bool is_tx = vfd->vfl_dir != VFL_DIR_RX;
switch (p->type) {
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
if (unlikely(!is_rx || !ops->vidioc_enum_fmt_vid_cap))
if (unlikely(!is_rx || !is_vid || !ops->vidioc_enum_fmt_vid_cap))
break;
return ops->vidioc_enum_fmt_vid_cap(file, fh, arg);
case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
if (unlikely(!is_rx || !ops->vidioc_enum_fmt_vid_cap_mplane))
if (unlikely(!is_rx || !is_vid || !ops->vidioc_enum_fmt_vid_cap_mplane))
break;
return ops->vidioc_enum_fmt_vid_cap_mplane(file, fh, arg);
case V4L2_BUF_TYPE_VIDEO_OVERLAY:
if (unlikely(!is_rx || !ops->vidioc_enum_fmt_vid_overlay))
if (unlikely(!is_rx || !is_vid || !ops->vidioc_enum_fmt_vid_overlay))
break;
return ops->vidioc_enum_fmt_vid_overlay(file, fh, arg);
case V4L2_BUF_TYPE_VIDEO_OUTPUT:
if (unlikely(!is_tx || !ops->vidioc_enum_fmt_vid_out))
if (unlikely(!is_tx || !is_vid || !ops->vidioc_enum_fmt_vid_out))
break;
return ops->vidioc_enum_fmt_vid_out(file, fh, arg);
case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
if (unlikely(!is_tx || !ops->vidioc_enum_fmt_vid_out_mplane))
if (unlikely(!is_tx || !is_vid || !ops->vidioc_enum_fmt_vid_out_mplane))
break;
return ops->vidioc_enum_fmt_vid_out_mplane(file, fh, arg);
case V4L2_BUF_TYPE_SDR_CAPTURE:
if (unlikely(!is_rx || !ops->vidioc_enum_fmt_sdr_cap))
if (unlikely(!is_rx || !is_sdr || !ops->vidioc_enum_fmt_sdr_cap))
break;
return ops->vidioc_enum_fmt_sdr_cap(file, fh, arg);
}