As the user needs to know what went wrong for S_ROUTING, copy array arguments back to the user. Signed-off-by: Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx> --- drivers/media/v4l2-core/v4l2-ioctl.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c index fb453b7d0c91..6921a72566df 100644 --- a/drivers/media/v4l2-core/v4l2-ioctl.c +++ b/drivers/media/v4l2-core/v4l2-ioctl.c @@ -3419,7 +3419,8 @@ video_usercopy(struct file *file, unsigned int orig_cmd, unsigned long arg, * in case of failure, but it is not defined here as part of the * 'v4l2_ioctls' array, insert an ad-hoc check to address that. */ - if (err < 0 && !always_copy && cmd != VIDIOC_SUBDEV_G_ROUTING) + if (err < 0 && !always_copy && cmd != VIDIOC_SUBDEV_G_ROUTING && + cmd != VIDIOC_SUBDEV_S_ROUTING) goto out; if (has_array_args) { -- 2.39.2