xfrm: fix __xfrm_route_forward()

This function should return 0 in case of error, 1 if OK
commit 452edd598f60522 (xfrm: Return dst directly from xfrm_lookup())
got it wrong.

Reported-and-bisected-by: Michael Smith <msmith@cbnco.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 2 deletions

diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index 1ba0258b49c7..027e3c6fb7e4 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -2175,7 +2175,7 @@ int __xfrm_route_forward(struct sk_buff *skb, unsigned short family)
         struct net *net = dev_net(skb->dev);
         struct flowi fl;
         struct dst_entry *dst;
-        int res = 0;
+        int res = 1;
 
         if (xfrm_decode_session(skb, &fl, family) < 0) {
                 XFRM_INC_STATS(net, LINUX_MIB_XFRMFWDHDRERROR);
@@ -2186,7 +2186,7 @@ int __xfrm_route_forward(struct sk_buff *skb, unsigned short family)
 
         dst = xfrm_lookup(net, skb_dst(skb), &fl, NULL, 0);
         if (IS_ERR(dst)) {
-                res = 1;
+                res = 0;
                 dst = NULL;
         }
         skb_dst_set(skb, dst);