X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=net%2Fbridge%2Fbr_fdb.c;h=8d566c13cc73e42a41933005ecf8da07f56b49f9;hb=5778eabd9cdbf16ea3e40248c452b4fd25554d11;hp=def2e403f932e25342c556040f129bba9b6830a1;hpb=8800c0ebf5e8363dab66647512dcef5b83203dec;p=linux-2.6-omap-h63xx.git

diff --git a/net/bridge/br_fdb.c b/net/bridge/br_fdb.c
index def2e403f93..8d566c13cc7 100644
--- a/net/bridge/br_fdb.c
+++ b/net/bridge/br_fdb.c
@@ -197,8 +197,8 @@ struct net_bridge_fdb_entry *br_fdb_get(struct net_bridge *br,
 
 	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;
 }