ipg: fix queue stop condition in the xmit handler

Signed-off-by: NFrancois Romieu <romieu@fr.zoreil.com>

drivers/net/ipg.c

@@ -1994,7 +1994,7 @@ static int ipg_nic_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
 	ipg_w32(IPG_DC_TX_DMA_POLL_NOW, DMA_CTRL);
 
 	if (sp->tx_current == (sp->tx_dirty + IPG_TFDLIST_LENGTH))
-		netif_wake_queue(dev);
+		netif_stop_queue(dev);
 
 	spin_unlock_irqrestore(&sp->lock, flags);