diff options
Diffstat (limited to 'drivers/net/wan/hdlc_cisco.c')
| -rw-r--r-- | drivers/net/wan/hdlc_cisco.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/net/wan/hdlc_cisco.c b/drivers/net/wan/hdlc_cisco.c index b38ffa149ab..b1e5e5b69c2 100644 --- a/drivers/net/wan/hdlc_cisco.c +++ b/drivers/net/wan/hdlc_cisco.c @@ -191,7 +191,8 @@ static int cisco_rx(struct sk_buff *skb) switch (ntohl (cisco_data->type)) { case CISCO_ADDR_REQ: /* Stolen from syncppp.c :-) */ - in_dev = dev->ip_ptr; + rcu_read_lock(); + in_dev = __in_dev_get_rcu(dev); addr = 0; mask = ~cpu_to_be32(0); /* is the mask correct? */ @@ -211,6 +212,7 @@ static int cisco_rx(struct sk_buff *skb) cisco_keepalive_send(dev, CISCO_ADDR_REPLY, addr, mask); } + rcu_read_unlock(); dev_kfree_skb_any(skb); return NET_RX_SUCCESS; |