diff --git a/net/bridge/br_stp.c b/net/bridge/br_stp.c
index 6856a6d9282b830fce00cce256d671c17c08638f..1f14b84553457053479d2019f2ec9d8e6e2c41b1 100644
--- a/net/bridge/br_stp.c
+++ b/net/bridge/br_stp.c
@@ -63,7 +63,8 @@ struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no)
 {
 	struct net_bridge_port *p;
 
-	list_for_each_entry_rcu(p, &br->port_list, list) {
+	list_for_each_entry_rcu(p, &br->port_list, list,
+				lockdep_is_held(&br->lock)) {
 		if (p->port_no == port_no)
 			return p;
 	}