sz_extra 2360 drivers/media/v4l2-core/v4l2-ctrls.c unsigned sz_extra; sz_extra 2451 drivers/media/v4l2-core/v4l2-ctrls.c sz_extra = 0; sz_extra 2461 drivers/media/v4l2-core/v4l2-ctrls.c sz_extra += 2 * tot_ctrl_size; sz_extra 2463 drivers/media/v4l2-core/v4l2-ctrls.c ctrl = kvzalloc(sizeof(*ctrl) + sz_extra, GFP_KERNEL);