confile_utils: cleanup lxc_macvlan_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 aa3599bbb5a020d72e376e14321e92e980abf398..59620b8dc6f31a24783884514ec5b27b9aa2215e 100644 (file)
--- a/src/lxc/confile_utils.c
+++ b/src/lxc/confile_utils.c
@@ -545,16 +545,14 @@ int lxc_macvlan_mode_to_flag(int *mode, const char *value)
 
 char *lxc_macvlan_flag_to_mode(int mode)
 {
-       size_t i;
-
-       for (i = 0; i < sizeof(macvlan_mode) / sizeof(macvlan_mode[0]); i++) {
+       for (size_t i = 0; i < sizeof(macvlan_mode) / sizeof(macvlan_mode[0]); i++) {
                if (macvlan_mode[i].mode != mode)
                        continue;
 
                return macvlan_mode[i].name;
        }
 
-       return NULL;
+       return ret_set_errno(NULL, EINVAL);
 }
 
 static struct lxc_ipvlan_mode {