diff options
Diffstat (limited to 'net/bridge/br_stp_bpdu.c')
| -rw-r--r-- | net/bridge/br_stp_bpdu.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/net/bridge/br_stp_bpdu.c b/net/bridge/br_stp_bpdu.c index 217bd225a42f..35cf27087b56 100644 --- a/net/bridge/br_stp_bpdu.c +++ b/net/bridge/br_stp_bpdu.c @@ -131,18 +131,19 @@ void br_send_tcn_bpdu(struct net_bridge_port *p) /* * Called from llc. * - * NO locks, but rcu_read_lock (preempt_disabled) + * NO locks, but rcu_read_lock */ void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, struct net_device *dev) { const unsigned char *dest = eth_hdr(skb)->h_dest; - struct net_bridge_port *p = rcu_dereference(dev->br_port); + struct net_bridge_port *p; struct net_bridge *br; const unsigned char *buf; - if (!p) + if (!br_port_exists(dev)) goto err; + p = br_port_get_rcu(dev); if (!pskb_may_pull(skb, 4)) goto err; |