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authorHans Verkuil <hansverk@cisco.com>2018-01-30 10:18:32 -0500
committerMauro Carvalho Chehab <mchehab@s-opensource.com>2018-01-31 03:09:04 -0500
commit273caa260035c03d89ad63d72d8cd3d9e5c5e3f1 (patch)
treeebca6689df20bcb62c4c818531008a56ae96ff57 /Documentation/devicetree/bindings/display/panel
parenta1dfb4c48cc1e64eeb7800a27c66a6f7e88d075a (diff)
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>
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