confile_utils: cleanup lxc_ipvlan_flag_to_mode()

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

diff --git a/src/lxc/confile_utils.c b/src/lxc/confile_utils.c
index 6347d702e33b68d1c92dafd1ed1481f6f0be4b44..d3edd7ca2eab96fba6c1d54540ce2daa3cfb88ca 100644 (file)
--- a/src/lxc/confile_utils.c
+++ b/src/lxc/confile_utils.c
@@ -571,7 +571,7 @@ char *lxc_ipvlan_flag_to_mode(int mode)
                return ipvlan_mode[i].name;
        }
 
-       return NULL;
+       return ret_set_errno(NULL, EINVAL);
 }
 
 static struct lxc_ipvlan_isolation {