drivers: net: arcnet: use setup_timer() helper.

Use setup_timer function instead of initializing timer with the
    function and data fields.
Signed-off-by: Allen Pais <allen.lkml@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/arcnet/arcnet.c

@@ -450,9 +450,7 @@ struct net_device *alloc_arcdev(const char *name)
 
 		lp->dev = dev;
 		spin_lock_init(&lp->lock);
-		init_timer(&lp->timer);
-		lp->timer.data = (unsigned long) dev;
-		lp->timer.function = arcnet_timer;
+		setup_timer(&lp->timer, arcnet_timer, (unsigned long)dev);
 	}
 
 	return dev;