diff --git a/net/bridge/br_stp_if.c b/net/bridge/br_stp_if.c
index 5593f5a..9b61d09 100644
--- a/net/bridge/br_stp_if.c
+++ b/net/bridge/br_stp_if.c
@@ -213,7 +213,7 @@
 
 	/* user has chosen a value so keep it */
 	if (br->flags & BR_SET_MAC_ADDR)
-		return;
+		return false;
 
 	list_for_each_entry(p, &br->port_list, list) {
 		if (addr == br_mac_zero ||