[ Upstream commit6faac63a69] Add missing rtnl_unlock() in the error path of ppp_create_interface(). Fixes:58a89ecaca("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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>