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/sb1250-mac.c b/drivers/net/sb1250-mac.c
index 7a4b9fbddbaf..d8c9cf1b901d 100644
--- a/drivers/net/sb1250-mac.c
+++ b/drivers/net/sb1250-mac.c
@@ -2084,7 +2084,7 @@ static int sbmac_start_tx(struct sk_buff *skb, struct net_device *dev)
                 netif_stop_queue(dev);
                 spin_unlock_irqrestore(&sc->sbm_lock, flags);
 
-                return 1;
+                return NETDEV_TX_BUSY;
         }
 
         dev->trans_start = jiffies;