netdev - [PATCH 19/21] packet: exit_net cleanup check added

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Message-ID: <3ce9c19f-2542-bb9b-5ed8-56e42dccbc0c@virtuozzo.com>
Date:   Sun, 5 Nov 2017 13:02:25 +0300
From:   Vasily Averin <vvs@...tuozzo.com>
To:     netdev@...r.kernel.org
Subject: [PATCH 19/21] packet: exit_net cleanup check added

Be sure that packet.sklist initialized in net_init hook was return
to initial state.

Signed-off-by: Vasily Averin <vvs@...tuozzo.com>
---
 net/packet/af_packet.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index bec01a3..16bbc0e 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -4562,6 +4562,8 @@ static int __net_init packet_net_init(struct net *net)
 static void __net_exit packet_net_exit(struct net *net)
 {
 	remove_proc_entry("packet", net->proc_net);
+	WARN(!hlist_empty(&net->packet.sklist),
+	     "net %p exit: packet sklist is not empty\n", net);
 }
 
 static struct pernet_operations packet_net_ops = {
-- 
2.7.4