diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c
index 49f986d..7b27d08 100644
--- a/net/ipv6/mcast.c
+++ b/net/ipv6/mcast.c
@@ -1429,7 +1429,12 @@
 			 &ipv6_hdr(skb)->saddr, &ipv6_hdr(skb)->daddr,
 			 skb->dev->ifindex);
 
-	err = xfrm_lookup(net, &dst, &fl, NULL, 0);
+	dst = xfrm_lookup(net, dst, &fl, NULL, 0);
+	err = 0;
+	if (IS_ERR(dst)) {
+		err = PTR_ERR(dst);
+		dst = NULL;
+	}
 	skb_dst_set(skb, dst);
 	if (err)
 		goto err_out;
@@ -1796,9 +1801,11 @@
 			 &ipv6_hdr(skb)->saddr, &ipv6_hdr(skb)->daddr,
 			 skb->dev->ifindex);
 
-	err = xfrm_lookup(net, &dst, &fl, NULL, 0);
-	if (err)
+	dst = xfrm_lookup(net, dst, &fl, NULL, 0);
+	if (IS_ERR(dst)) {
+		err = PTR_ERR(dst);
 		goto err_out;
+	}
 
 	skb_dst_set(skb, dst);
 	err = NF_HOOK(NFPROTO_IPV6, NF_INET_LOCAL_OUT, skb, NULL, skb->dev,