diff options
| author | Hans Verkuil <hansverk@cisco.com> | 2018-01-30 10:18:32 -0500 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2018-01-31 03:09:04 -0500 |
| commit | 273caa260035c03d89ad63d72d8cd3d9e5c5e3f1 (patch) | |
| tree | ebca6689df20bcb62c4c818531008a56ae96ff57 /kernel | |
| parent | a1dfb4c48cc1e64eeb7800a27c66a6f7e88d075a (diff) | |
| download | lwn-273caa260035c03d89ad63d72d8cd3d9e5c5e3f1.tar.gz lwn-273caa260035c03d89ad63d72d8cd3d9e5c5e3f1.zip | |
media: v4l2-compat-ioctl32.c: make ctrl_is_pointer work for subdevs
If the device is of type VFL_TYPE_SUBDEV then vdev->ioctl_ops
is NULL so the 'if (!ops->vidioc_query_ext_ctrl)' check would crash.
Add a test for !ops to the condition.
All sub-devices that have controls will use the control framework,
so they do not have an equivalent to ops->vidioc_query_ext_ctrl.
Returning false if ops is NULL is the correct thing to do here.
Fixes: b8c601e8af ("v4l2-compat-ioctl32.c: fix ctrl_is_pointer")
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reported-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: <stable@vger.kernel.org> # for v4.15 and up
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'kernel')
0 files changed, 0 insertions, 0 deletions