openvswitch: small potential memory leak in ovs_vport_alloc()

We're unlikely to hit this leak, but the static checkers complain if we
don't take care of it.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Jesse Gross <jesse@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/openvswitch/vport.c

@@ -127,8 +127,10 @@ struct vport *ovs_vport_alloc(int priv_size, const struct vport_ops *ops,
 	vport->ops = ops;
 
 	vport->percpu_stats = alloc_percpu(struct vport_percpu_stats);
-	if (!vport->percpu_stats)
+	if (!vport->percpu_stats) {
+		kfree(vport);
 		return ERR_PTR(-ENOMEM);
+	}
 
 	spin_lock_init(&vport->stats_lock);