[IPV6]: Implement appropriate dummy rule 4 in ipv6_dev_get_saddr().

Ensure to update hiscore.rule in dummy rule 4 in ipv6_dev_get_saddr().
Pointed out by Yan Zheng <yanzheng@21cn.com>.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 0 deletions

diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index a16064ba0caf..76ff9f4fe89d 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -985,6 +985,8 @@ int ipv6_dev_get_saddr(struct net_device *daddr_dev,
                         }
 
                         /* Rule 4: Prefer home address -- not implemented yet */
+                        if (hiscore.rule < 4)
+                                hiscore.rule++;
 
                         /* Rule 5: Prefer outgoing interface */
                         if (hiscore.rule < 5) {