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net: Checks skb_dst to be NULL in inet_iif
[deliverable/linux.git]
/
include
/
net
/
route.h
diff --git
a/include/net/route.h
b/include/net/route.h
index 9b0a523bb4280023e4429fcc5379cb5d2d2d419a..f4b11eee1754a78c76f15b76537b295f37ae6ac3 100644
(file)
--- 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;
}
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