summaryrefslogtreecommitdiffstats
path: root/net/ipv4/arp.c
diff options
context:
space:
mode:
Diffstat (limited to 'net/ipv4/arp.c')
-rw-r--r--net/ipv4/arp.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/net/ipv4/arp.c b/net/ipv4/arp.c
index c663fa5339ee..8e17f65f4002 100644
--- a/net/ipv4/arp.c
+++ b/net/ipv4/arp.c
@@ -368,6 +368,7 @@ static void arp_solicit(struct neighbour *neigh, struct sk_buff *skb)
if (!(neigh->nud_state&NUD_VALID))
printk(KERN_DEBUG "trying to ucast probe in NUD_INVALID\n");
dst_ha = neigh->ha;
+ read_lock_bh(&neigh->lock);
} else if ((probes -= neigh->parms->app_probes) < 0) {
#ifdef CONFIG_ARPD
neigh_app_ns(neigh);
@@ -377,6 +378,8 @@ static void arp_solicit(struct neighbour *neigh, struct sk_buff *skb)
arp_send(ARPOP_REQUEST, ETH_P_ARP, target, dev, saddr,
dst_ha, dev->dev_addr, NULL);
+ if (dst_ha)
+ read_unlock_bh(&neigh->lock);
}
static int arp_ignore(struct in_device *in_dev, __be32 sip, __be32 tip)
OpenPOWER on IntegriCloud