ucc_geth: returns NETDEV_TX_BUSY when BD ring is full

Returns NETDEV_TX_BUSY when BD ring is full.

Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

diff --git a/drivers/net/ucc_geth.c b/drivers/net/ucc_geth.c
index 639e1e6..dab88b9 100644 (file)
--- a/drivers/net/ucc_geth.c
+++ b/drivers/net/ucc_geth.c
@@ -3607,6 +3607,7 @@ static int ucc_geth_start_xmit(struct sk_buff *skb, struct net_device *dev)
        if (bd == ugeth->confBd[txQ]) {
                if (!netif_queue_stopped(dev))
                        netif_stop_queue(dev);
+               return NETDEV_TX_BUSY;
        }
 
        ugeth->txBd[txQ] = bd;
@@ -3622,7 +3623,7 @@ static int ucc_geth_start_xmit(struct sk_buff *skb, struct net_device *dev)
 
        spin_unlock_irq(&ugeth->lock);
 
-       return 0;
+       return NETDEV_TX_OK;
 }
 
 static int ucc_geth_rx(struct ucc_geth_private *ugeth, u8 rxQ, int rx_work_limit)