From cd292f12648dc268841c8d78c78aab83f2e63fba Mon Sep 17 00:00:00 2001
From: "Bjoern A. Zeeb" <bz@FreeBSD.org>
Date: Tue, 27 Jul 2010 11:54:01 +0000
Subject: [PATCH] Return NULL rather than 0 for a pointer.

MFC after:	3 days
---
 sys/net/if.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sys/net/if.c b/sys/net/if.c
index cb1686117d2d..da323cc19a32 100644
--- a/sys/net/if.c
+++ b/sys/net/if.c
@@ -1728,7 +1728,7 @@ ifaof_ifpforaddr(struct sockaddr *addr, struct ifnet *ifp)
 	u_int af = addr->sa_family;
 
 	if (af >= AF_MAX)
-		return (0);
+		return (NULL);
 	IF_ADDR_LOCK(ifp);
 	TAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) {
 		if (ifa->ifa_addr->sa_family != af)