diff --git a/net/bridge/br_fdb.c b/net/bridge/br_fdb.c
index def2e40..8d566c1 100644
--- a/net/bridge/br_fdb.c
+++ b/net/bridge/br_fdb.c
@@ -197,8 +197,8 @@
 
 	rcu_read_lock();
 	fdb = __br_fdb_get(br, addr);
-	if (fdb)
-		atomic_inc(&fdb->use_count);
+	if (fdb && !atomic_inc_not_zero(&fdb->use_count))
+		fdb = NULL;
 	rcu_read_unlock();
 	return fdb;
 }