netfilter: nf_nat: missing condition in nf_xfrm_me_harder()

This if statement was accidentally dropped in (aaa795a netfilter:
nat: propagate errors from xfrm_me_harder()) so now it returns
unconditionally.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/net/netfilter/nf_nat_core.c b/net/netfilter/nf_nat_core.c
index 346f871cf096..cf1c731cdc3e 100644
--- a/net/netfilter/nf_nat_core.c
+++ b/net/netfilter/nf_nat_core.c
@@ -90,6 +90,7 @@ int nf_xfrm_me_harder(struct sk_buff *skb, unsigned int family)
         int err;
 
         err = xfrm_decode_session(skb, &fl, family);
+        if (err < 0)
                 return err;
 
         dst = skb_dst(skb);