1 files changed, 4 insertions, 3 deletions

diff --git a/include/net/route.h b/include/net/route.h
index 9b0a523bb428..f4b11eee1754 100644
--- a/include/net/route.h
+++ b/include/net/route.h
@@ -322,10 +322,11 @@ static inline struct rtable *ip_route_newports(struct flowi4 *fl4, struct rtable
 
 static inline int inet_iif(const struct sk_buff *skb)
 {
-        int iif = skb_rtable(skb)->rt_iif;
+        struct rtable *rt = skb_rtable(skb);
+
+        if (rt && rt->rt_iif)
+                return rt->rt_iif;
 
-        if (iif)
-                return iif;
         return skb->skb_iif;
 }