qeth: start dev queue after tx drop error

In case the xmit function drop out with an error, we have to wake
the netdevice queue to start another xmit.

Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

drivers/s390/net/qeth_l2_main.c

@@ -721,6 +721,7 @@ tx_drop:
 	if ((new_skb != skb) && new_skb)
 		dev_kfree_skb_any(new_skb);
 	dev_kfree_skb_any(skb);
+	netif_wake_queue(dev);
 	return NETDEV_TX_OK;
 }
 

drivers/s390/net/qeth_l3_main.c

@@ -2764,6 +2764,7 @@ tx_drop:
 	if ((new_skb != skb) && new_skb)
 		dev_kfree_skb_any(new_skb);
 	dev_kfree_skb_any(skb);
+	netif_wake_queue(dev);
 	return NETDEV_TX_OK;
 }