[PATCH net] inetpeer: fix RCU lookup() again

[Eric Dumazet]

From: Eric Dumazet <eduma...@google.com>

My prior fix was not complete, as we were dereferencing a pointer
three times per node, not twice as I initially thought.

Fixes: 4cc5b44b29a9 ("inetpeer: fix RCU lookup()")
Fixes: b145425f269a ("inetpeer: remove AVL implementation in favor of RB tree")
Signed-off-by: Eric Dumazet <eduma...@google.com>
---
 net/ipv4/inetpeer.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/ipv4/inetpeer.c b/net/ipv4/inetpeer.c
index 
e7eb590c86ce2b33654c17c61619de74ff07bfd1..b20c8ac640811e1b4c5416134181dd77675db878
 100644
--- a/net/ipv4/inetpeer.c
+++ b/net/ipv4/inetpeer.c
@@ -128,9 +128,9 @@ static struct inet_peer *lookup(const struct inetpeer_addr 
*daddr,
                        break;
                }
                if (cmp == -1)
-                       pp = &(*pp)->rb_left;
+                       pp = &next->rb_left;
                else
-                       pp = &(*pp)->rb_right;
+                       pp = &next->rb_right;
        }
        *parent_p = parent;
        *pp_p = pp;