[PATCH] net-ipv6: addrconf_f6i_alloc - fix non-null pointer check to !IS_ERR()

["Maciej Żenczykowski" <zenczykowski@gmail.com>]

From: Maciej Żenczykowski <maze@google.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@gmail.com>
Cc: Lorenzo Colitti <lorenzo@google.com>
Cc: Eric Dumazet <edumazet@google.com>
Signed-off-by: Maciej Żenczykowski <maze@google.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