[PATCH BUGFIX ] ipv6: fix the bug of address check

[Shan Wei <shanwei@cn.fujitsu.com>]

If there are several IPv6 addresses with same hash value in hashlist,
and they are all not matched with addr argument.
In this case, ipv6_chk_addr() should return 0.

This bug is introduced by commit c2e21293c054817c42eb5fa9c613d2ad51954136
(title: ipv6: convert addrconf list to hlist).

Signed-off-by: Shan Wei <shanwei@cn.fujitsu.com>
---
 net/ipv6/addrconf.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 3984f52..d8e5907 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -1291,7 +1291,7 @@ int ipv6_chk_addr(struct net *net, struct in6_addr *addr,
 	}
 	rcu_read_unlock_bh();
 
-	return ifp != NULL;
+	return node != NULL;
 }
 EXPORT_SYMBOL(ipv6_chk_addr);
 
-- 
1.6.3.3