netdev - [PATCH v3 04/21] ppp: exit_net cleanup checks added

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Date:   Mon, 6 Nov 2017 16:23:51 +0300
From:   Vasily Averin <vvs@...tuozzo.com>
To:     Linux Kernel Network Developers <netdev@...r.kernel.org>
Cc:     linux-ppp@...r.kernel.org, Paul Mackerras <paulus@...ba.org>
Subject: [PATCH v3 04/21] ppp: exit_net cleanup checks added

Be sure that lists initialized in net_init hook were return
to initial state.

Signed-off-by: Vasily Averin <vvs@...tuozzo.com>
---
 drivers/net/ppp/ppp_generic.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/net/ppp/ppp_generic.c b/drivers/net/ppp/ppp_generic.c
index e365866..c0861d1 100644
--- a/drivers/net/ppp/ppp_generic.c
+++ b/drivers/net/ppp/ppp_generic.c
@@ -960,6 +960,12 @@ static __net_exit void ppp_exit_net(struct net *net)
 	rtnl_unlock();
 
 	idr_destroy(&pn->units_idr);
+	WARN_ONCE(!list_empty(&pn->all_channels),
+		  "net %x %s: all_channels list is not empty\n",
+		  net->ns.inum, __func__);
+	WARN_ONCE(!list_empty(&pn->new_channels),
+		  "net %x %s: new_channels list is not empty\n",
+		  net->ns.inum, __func__);
 }
 
 static struct pernet_operations ppp_net_ops = {
-- 
2.7.4