Callers of br_fdb_find() need to hold the hash lock, which br_fdb_find_port() doesn't do. Add the missing lock/unlock pair. Signed-off-by: Petr Machata <petrm@xxxxxxxxxxxx> --- net/bridge/br_fdb.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/net/bridge/br_fdb.c b/net/bridge/br_fdb.c index b19e310..3f5691a 100644 --- a/net/bridge/br_fdb.c +++ b/net/bridge/br_fdb.c @@ -135,9 +135,11 @@ struct net_device *br_fdb_find_port(const struct net_device *br_dev, return NULL; br = netdev_priv(br_dev); + spin_lock_bh(&br->hash_lock); f = br_fdb_find(br, addr, vid); if (f && f->dst) dev = f->dst->dev; + spin_unlock_bh(&br->hash_lock); return dev; } -- 2.4.11
