copy_in_user() already checks for write permission, so we don't need to
do it here. This was added in 1a5e4c867c "[media] uvcvideo: Implement
compat_ioctl32 for custom ioctls".
Signed-off-by: Dan Carpenter <dan.carpen...@oracle.com>
diff --git a/drivers/media/video/uvc/uvc_v4l2.c
b/drivers/media/video/uvc/uvc_v4l2.c
index ff2cddd..111bfff 100644
--- a/drivers/media/video/uvc/uvc_v4l2.c
+++ b/drivers/media/video/uvc/uvc_v4l2.c
@@ -1105,8 +1105,6 @@ static int uvc_v4l2_put_xu_mapping(const struct
uvc_xu_control_mapping *kp,
if (get_user(p, &up->menu_info))
return -EFAULT;
umenus = compat_ptr(p);
- if (!access_ok(VERIFY_WRITE, umenus, kp->menu_count * sizeof(*umenus)))
- return -EFAULT;
if (copy_in_user(umenus, kmenus, kp->menu_count * sizeof(*umenus)))
return -EFAULT;
--
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