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authorDavid S. Miller <davem@davemloft.net>2011-12-02 13:49:21 -0500
committerDavid S. Miller <davem@davemloft.net>2011-12-02 13:49:21 -0500
commitb3613118eb30a589d971e4eccbbb2a1314f5dfd4 (patch)
tree868c1ee59e1b5c19a4f2e43716400d0001a994e5 /drivers/infiniband/core/addr.c
parent7505afe28c16a8d386624930a018d0052c75d687 (diff)
parent5983fe2b29df5885880d7fa3b91aca306c7564ef (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Diffstat (limited to 'drivers/infiniband/core/addr.c')
-rw-r--r--drivers/infiniband/core/addr.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/infiniband/core/addr.c b/drivers/infiniband/core/addr.c
index adf0757280e..a20c3c8224e 100644
--- a/drivers/infiniband/core/addr.c
+++ b/drivers/infiniband/core/addr.c
@@ -216,7 +216,9 @@ static int addr4_resolve(struct sockaddr_in *src_in,
neigh = neigh_lookup(&arp_tbl, &rt->rt_gateway, rt->dst.dev);
if (!neigh || !(neigh->nud_state & NUD_VALID)) {
+ rcu_read_lock();
neigh_event_send(dst_get_neighbour(&rt->dst), NULL);
+ rcu_read_unlock();
ret = -ENODATA;
if (neigh)
goto release;
@@ -274,15 +276,16 @@ static int addr6_resolve(struct sockaddr_in6 *src_in,
goto put;
}
+ rcu_read_lock();
neigh = dst_get_neighbour(dst);
if (!neigh || !(neigh->nud_state & NUD_VALID)) {
if (neigh)
neigh_event_send(neigh, NULL);
ret = -ENODATA;
- goto put;
+ } else {
+ ret = rdma_copy_addr(addr, dst->dev, neigh->ha);
}
-
- ret = rdma_copy_addr(addr, dst->dev, neigh->ha);
+ rcu_read_unlock();
put:
dst_release(dst);
return ret;