[PATCH 4.2.y-ckt 91/98] ppp: release rtnl mutex when interface creation fails

Kamal Mostafa
2016-03-15T23:33:50Z

From: Guillaume Nault <g.nault@alphalink.fr>

commit 6faac63a6986f29ef39827f460edd3a5ba64ad5c upstream.

Add missing rtnl_unlock() in the error path of ppp_create_interface().

Fixes: 58a89ecaca53 ("ppp: fix lockdep splat in ppp_dev_uninit()")
Signed-off-by: Guillaume Nault <g.nault@alphalink.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
drivers/net/ppp/ppp_generic.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/net/ppp/ppp_generic.c b/drivers/net/ppp/ppp_generic.c
index 3f3bda8..e82b43c 100644
--- a/drivers/net/ppp/ppp_generic.c
+++ b/drivers/net/ppp/ppp_generic.c
@@ -2790,6 +2790,7 @@ static struct ppp *ppp_create_interface(struct net *net, int unit,

out2:
mutex_unlock(&pn->all_ppp_mutex);
+ rtnl_unlock();
free_netdev(dev);
out1:
*retp = ret;
--
2.7.0