From: Vasily Averin <vvs@virtuozzo.com>
Date: Sun, 12 Nov 2017 19:29:33 +0000 (+0300)
Subject: fib_notifier: exit_net cleanup check added
X-Git-Tag: v4.15-rc1~108^2~46
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=0b6f59553544f47caa940c01015ac1f1113f046a;p=linux.git

fib_notifier: exit_net cleanup check added

Be sure that fib_notifier_ops list initilized in net_init hook was return
to initial state.

Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/core/fib_notifier.c b/net/core/fib_notifier.c
index 4fc202dbdfb6..6b8cd494574f 100644
--- a/net/core/fib_notifier.c
+++ b/net/core/fib_notifier.c
@@ -161,8 +161,14 @@ static int __net_init fib_notifier_net_init(struct net *net)
 	return 0;
 }
 
+static void __net_exit fib_notifier_net_exit(struct net *net)
+{
+	WARN_ON_ONCE(!list_empty(&net->fib_notifier_ops));
+}
+
 static struct pernet_operations fib_notifier_net_ops = {
 	.init = fib_notifier_net_init,
+	.exit = fib_notifier_net_exit,
 };
 
 static int __init fib_notifier_init(void)