From d4ace3e00129687b680977ecc5ea4c9a03e35b63 Mon Sep 17 00:00:00 2001
From: Sedat Dilek <sedat.dilek@gmail.com>
Date: Wed, 23 Sep 2015 22:33:31 +0200
Subject: [PATCH] ppp: Fix circular locking dependency
---
drivers/net/ppp/ppp_generic.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
@@ -2742,6 +2742,7 @@ static struct ppp *ppp_create_interface(struct net *net, int unit,
*/
dev_net_set(dev, net);
+ rtnl_lock();
mutex_lock(&pn->all_ppp_mutex);
if (unit < 0) {
@@ -2772,7 +2773,7 @@ static struct ppp *ppp_create_interface(struct net *net, int unit,
ppp->file.index = unit;
sprintf(dev->name, "ppp%d", unit);
- ret = register_netdev(dev);
+ ret = register_netdevice(dev);
if (ret != 0) {
unit_put(&pn->units_idr, unit);
netdev_err(ppp->dev, "PPP: couldn't register device %s (%d)\n",
@@ -2784,6 +2785,7 @@ static struct ppp *ppp_create_interface(struct net *net, int unit,
atomic_inc(&ppp_unit_count);
mutex_unlock(&pn->all_ppp_mutex);
+ rtnl_unlock();
*retp = 0;
return ppp;
--
2.5.3