[PATCH net] ppp: release rtnl mutex when interface creation fails

[Guillaume Nault]

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.na...@alphalink.fr>
---
 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 e8a5936..d61da9ec 100644
--- a/drivers/net/ppp/ppp_generic.c
+++ b/drivers/net/ppp/ppp_generic.c
@@ -2816,6 +2816,7 @@ 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