netdev - [PATCH] net-ipv6: addrconf_f6i_alloc - fix non-null pointer check to !IS

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Message-Id: <20190906035637.47097-1-zenczykowski@gmail.com>
Date:   Thu,  5 Sep 2019 20:56:37 -0700
From:   Maciej Żenczykowski <zenczykowski@...il.com>
To:     Maciej Żenczykowski <maze@...gle.com>,
        "David S . Miller" <davem@...emloft.net>
Cc:     netdev@...r.kernel.org, David Ahern <dsahern@...il.com>,
        Lorenzo Colitti <lorenzo@...gle.com>,
        Eric Dumazet <edumazet@...gle.com>
Subject: [PATCH] net-ipv6: addrconf_f6i_alloc - fix non-null pointer check to !IS_ERR()

From: Maciej Żenczykowski <maze@...gle.com>

Fixes a stupid bug I recently introduced...
ip6_route_info_create() returns an ERR_PTR(err) and not a NULL on error.

Fixes: d55a2e374a94 ("net-ipv6: fix excessive RTF_ADDRCONF flag on ::1/128 local route (and others)'")
Cc: David Ahern <dsahern@...il.com>
Cc: Lorenzo Colitti <lorenzo@...gle.com>
Cc: Eric Dumazet <edumazet@...gle.com>
Signed-off-by: Maciej Żenczykowski <maze@...gle.com>
---
 net/ipv6/route.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 003562dd3395..2fb2b913214c 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -4383,7 +4383,7 @@ struct fib6_info *addrconf_f6i_alloc(struct net *net,
 	}
 
 	f6i = ip6_route_info_create(&cfg, gfp_flags, NULL);
-	if (f6i)
+	if (!IS_ERR(f6i))
 		f6i->dst_nocount = true;
 	return f6i;
 }
-- 
2.23.0.187.g17f5b7556c-goog