[IPV6]: ROUTE: Set appropriate information before inserting a route.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index e885570..5b58a51 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -1221,21 +1221,24 @@
2. It is gatewayed route or NONEXTHOP route. Action: clone it.
*/
if (!rt->rt6i_nexthop && !(rt->rt6i_flags & RTF_NONEXTHOP)) {
- nrt = rt6_cow(rt, daddr, saddr, NULL);
- if (!nrt->u.dst.error) {
- nrt->u.dst.metrics[RTAX_MTU-1] = pmtu;
- if (allfrag)
- nrt->u.dst.metrics[RTAX_FEATURES-1] |= RTAX_FEATURE_ALLFRAG;
- /* According to RFC 1981, detecting PMTU increase shouldn't be
- happened within 5 mins, the recommended timer is 10 mins.
- Here this route expiration time is set to ip6_rt_mtu_expires
- which is 10 mins. After 10 mins the decreased pmtu is expired
- and detecting PMTU increase will be automatically happened.
- */
- dst_set_expires(&nrt->u.dst, ip6_rt_mtu_expires);
- nrt->rt6i_flags |= RTF_DYNAMIC|RTF_EXPIRES;
- }
- dst_release(&nrt->u.dst);
+ nrt = rt6_alloc_cow(rt, daddr, saddr);
+ if (!nrt)
+ goto out;
+
+ nrt->u.dst.metrics[RTAX_MTU-1] = pmtu;
+ if (allfrag)
+ nrt->u.dst.metrics[RTAX_FEATURES-1] |= RTAX_FEATURE_ALLFRAG;
+
+ /* According to RFC 1981, detecting PMTU increase shouldn't be
+ * happened within 5 mins, the recommended timer is 10 mins.
+ * Here this route expiration time is set to ip6_rt_mtu_expires
+ * which is 10 mins. After 10 mins the decreased pmtu is expired
+ * and detecting PMTU increase will be automatically happened.
+ */
+ dst_set_expires(&nrt->u.dst, ip6_rt_mtu_expires);
+ nrt->rt6i_flags |= RTF_DYNAMIC|RTF_EXPIRES;
+
+ ip6_ins_rt(nrt, NULL, NULL, NULL);
} else {
nrt = ip6_rt_copy(rt);
if (nrt == NULL)