libcamera: camera_sensor: Only access V4L_CID_HBLANK if existing

Correct a crash in CameraSensor::init() when trying to set the
V4L2_CID_HBLANK control on sensor not implementing this control. The
HBLANK sensor not being mandatory for non-RAW sensors, it can happen
that the sensor does not expose this control. Perform check against
availability of the control prior to usage in order to avoid the crash.

Signed-off-by: Alain Volmat <alain.volmat@foss.st.com>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

0 files changed, 0 insertions, 0 deletions