[158/264] ipv6: fix route error binding peer in func icmp6_dst_alloc

[Greg KH]

3.1-stable review patch.  If anyone has any objections, please let me know.

------------------


From: Gao feng <omarapazanadi@xxxxxxxxx>

[ Upstream commit 7011687f0f2f12cc348f6a693fafe63d89167eac ]

in func icmp6_dst_alloc,dst_metric_set call ipv6_cow_metrics to set metric.
ipv6_cow_metrics may will call rt6_bind_peer to set rt6_info->rt6i_peer.
So,we should move ipv6_addr_copy before dst_metric_set to make sure rt6_bind_peer success.

Signed-off-by: Gao feng <gaofeng@xxxxxxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>
---
 net/ipv6/route.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -1086,11 +1086,10 @@ struct dst_entry *icmp6_dst_alloc(struct
 	rt->dst.output  = ip6_output;
 	dst_set_neighbour(&rt->dst, neigh);
 	atomic_set(&rt->dst.__refcnt, 1);
-	dst_metric_set(&rt->dst, RTAX_HOPLIMIT, 255);
-
 	ipv6_addr_copy(&rt->rt6i_dst.addr, addr);
 	rt->rt6i_dst.plen = 128;
 	rt->rt6i_idev     = idev;
+	dst_metric_set(&rt->dst, RTAX_HOPLIMIT, 255);
 
 	spin_lock_bh(&icmp6_dst_lock);
 	rt->dst.next = icmp6_dst_gc_list;


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