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-rw-r--r--net/ipv4/inetpeer.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/net/ipv4/inetpeer.c b/net/ipv4/inetpeer.c
index 337ad41bb80a..e7eb590c86ce 100644
--- a/net/ipv4/inetpeer.c
+++ b/net/ipv4/inetpeer.c
@@ -102,15 +102,18 @@ static struct inet_peer *lookup(const struct inetpeer_addr *daddr,
struct rb_node **parent_p,
struct rb_node ***pp_p)
{
- struct rb_node **pp, *parent;
+ struct rb_node **pp, *parent, *next;
struct inet_peer *p;
pp = &base->rb_root.rb_node;
parent = NULL;
- while (*pp) {
+ while (1) {
int cmp;
- parent = rcu_dereference_raw(*pp);
+ next = rcu_dereference_raw(*pp);
+ if (!next)
+ break;
+ parent = next;
p = rb_entry(parent, struct inet_peer, rb_node);
cmp = inetpeer_addr_cmp(daddr, &p->daddr);
if (cmp == 0) {