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path: root/net/ipv6/xfrm6_policy.c
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Diffstat (limited to 'net/ipv6/xfrm6_policy.c')
-rw-r--r--net/ipv6/xfrm6_policy.c15
1 files changed, 14 insertions, 1 deletions
diff --git a/net/ipv6/xfrm6_policy.c b/net/ipv6/xfrm6_policy.c
index cc885d3aa9e5..b1d81c4270ab 100644
--- a/net/ipv6/xfrm6_policy.c
+++ b/net/ipv6/xfrm6_policy.c
@@ -56,12 +56,18 @@ static int xfrm6_get_saddr(struct net *net, int oif,
{
struct dst_entry *dst;
struct net_device *dev;
+ struct inet6_dev *idev;
dst = xfrm6_dst_lookup(net, 0, oif, NULL, daddr, mark);
if (IS_ERR(dst))
return -EHOSTUNREACH;
- dev = ip6_dst_idev(dst)->dev;
+ idev = ip6_dst_idev(dst);
+ if (!idev) {
+ dst_release(dst);
+ return -EHOSTUNREACH;
+ }
+ dev = idev->dev;
ipv6_dev_get_saddr(dev_net(dev), dev, &daddr->in6, 0, &saddr->in6);
dst_release(dst);
return 0;
@@ -284,8 +290,14 @@ int __init xfrm6_init(void)
ret = register_pernet_subsys(&xfrm6_net_ops);
if (ret)
goto out_protocol;
+
+ ret = xfrm_nat_keepalive_init(AF_INET6);
+ if (ret)
+ goto out_nat_keepalive;
out:
return ret;
+out_nat_keepalive:
+ unregister_pernet_subsys(&xfrm6_net_ops);
out_protocol:
xfrm6_protocol_fini();
out_state:
@@ -297,6 +309,7 @@ out_policy:
void xfrm6_fini(void)
{
+ xfrm_nat_keepalive_fini(AF_INET6);
unregister_pernet_subsys(&xfrm6_net_ops);
xfrm6_protocol_fini();
xfrm6_policy_fini();