libcamera: v4l2_device: Fix variable-sized object initialization

Compiling with clang renders errors as a variable-sized arrays are not
allowed to be initialized. Solve this by using memset() for v4l2Ctrls
which is the only one of the two arrays that needs to be zeroed.

    ../../src/libcamera/v4l2_device.cpp:155:37: error: variable-sized object may not be initialized
        const V4L2ControlInfo *controlInfo[count] = {};
                                           ^~~~~
    ../../src/libcamera/v4l2_device.cpp:156:36: error: variable-sized object may not be initialized
	    struct v4l2_ext_control v4l2Ctrls[count] = {};
					      ^~~~~
    ../../src/libcamera/v4l2_device.cpp:227:37: error: variable-sized object may not be initialized
	    const V4L2ControlInfo *controlInfo[count] = {};
					       ^~~~~
    ../../src/libcamera/v4l2_device.cpp:228:36: error: variable-sized object may not be initialized
	    struct v4l2_ext_control v4l2Ctrls[count] = {};
					      ^~~~~
Fixes: eb068f4e67eedacd ("libcamera: v4l2_device: Implement get and set controls")
Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>

0 files changed, 0 insertions, 0 deletions