net: use symbolic values for ndo_start_xmit() return codes

Convert magic values 1 and -1 to NETDEV_TX_BUSY and NETDEV_TX_LOCKED respectively.

0 (NETDEV_TX_OK) is not changed to keep the noise down, except in very few cases
where its in direct proximity to one of the other values.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/net/mace.c b/drivers/net/mace.c
index 1ad740bc8878..1427755c224d 100644
--- a/drivers/net/mace.c
+++ b/drivers/net/mace.c
@@ -547,7 +547,7 @@ static int mace_xmit_start(struct sk_buff *skb, struct net_device *dev)
         netif_stop_queue(dev);
         mp->tx_fullup = 1;
         spin_unlock_irqrestore(&mp->lock, flags);
-        return 1;               /* can't take it at the moment */
+        return NETDEV_TX_BUSY;          /* can't take it at the moment */
     }
     spin_unlock_irqrestore(&mp->lock, flags);