// SPDX-License-Identifier: GPL-2.0-or-later
/*
* uvc_v4l2.c -- USB Video Class driver - V4L2 API
*
* Copyright (C) 2005-2010
* Laurent Pinchart (laurent.pinchart@ideasonboard.com)
*/
#include <linux/compat.h>
#include <linux/kernel.h>
#include <linux/list.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/usb.h>
#include <linux/videodev2.h>
#include <linux/vmalloc.h>
#include <linux/mm.h>
#include <linux/wait.h>
#include <linux/atomic.h>
#include <media/v4l2-common.h>
#include <media/v4l2-ctrls.h>
#include <media/v4l2-event.h>
#include <media/v4l2-ioctl.h>
#include "uvcvideo.h"
/* ------------------------------------------------------------------------
* UVC ioctls
*/
static int uvc_ioctl_ctrl_map(struct uvc_video_chain *chain,
struct uvc_xu_control_mapping *xmap)
{
struct uvc_control_mapping *map;
unsigned int size;
int ret;
map = kzalloc(sizeof