confile_utils: cleanup lxc_veth_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 df1447efe5494ef2d3d43cc7af0f2e109d4871c8..31ee22026b185b82374107856782ff421e5cb815 100644 (file)
--- a/src/lxc/confile_utils.c
+++ b/src/lxc/confile_utils.c
@@ -517,7 +517,7 @@ char *lxc_veth_flag_to_mode(int mode)
                return veth_mode[i].name;
        }
 
-       return NULL;
+       return ret_set_errno(NULL, EINVAL);
 }
 
 static struct lxc_macvlan_mode {