switch compat_drm_getsareactx() to drm_ioctl_kernel()

static int compat_drm_getsareactx(struct file *file, unsigned int cmd,

				  unsigned long arg)

{

	struct drm_ctx_priv_map __user *request;

	struct drm_ctx_priv_map req;

	drm_ctx_priv_map32_t req32;

	drm_ctx_priv_map32_t __user *argp = (void __user *)arg;

	int err;

	unsigned int ctx_id;

	void *handle;

	if (!access_ok(VERIFY_WRITE, argp, sizeof(*argp))

	    || __get_user(ctx_id, &argp->ctx_id))

		return -EFAULT;

	request = compat_alloc_user_space(sizeof(*request));

	if (!request)

		return -EFAULT;

	if (__put_user(ctx_id, &request->ctx_id))

	if (copy_from_user(&req32, argp, sizeof(req32)))

		return -EFAULT;

	err = drm_ioctl(file, DRM_IOCTL_GET_SAREA_CTX, (unsigned long)request);

	req.ctx_id = req32.ctx_id;

	err = drm_ioctl_kernel(file, drm_legacy_getsareactx, &req, DRM_AUTH);

	if (err)

		return err;

	if (__get_user(handle, &request->handle)

	    || __put_user((unsigned long)handle, &argp->handle))

	req32.handle = ptr_to_compat(req.handle);

	if (copy_to_user(argp, &req32, sizeof(req32)))

		return -EFAULT;

	return 0;

	DRM_IOCTL32_DEF(DRM_IOCTL_FREE_BUFS, compat_drm_freebufs),

	[DRM_IOCTL_NR(DRM_IOCTL_RM_MAP32)].fn = compat_drm_rmmap,

	DRM_IOCTL32_DEF(DRM_IOCTL_SET_SAREA_CTX, compat_drm_setsareactx),

	[DRM_IOCTL_NR(DRM_IOCTL_GET_SAREA_CTX32)].fn = compat_drm_getsareactx,

	DRM_IOCTL32_DEF(DRM_IOCTL_GET_SAREA_CTX, compat_drm_getsareactx),

	[DRM_IOCTL_NR(DRM_IOCTL_RES_CTX32)].fn = compat_drm_resctx,

	[DRM_IOCTL_NR(DRM_IOCTL_DMA32)].fn = compat_drm_dma,

#if IS_ENABLED(CONFIG_AGP)