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/hamachi.c b/drivers/net/hamachi.c
index 26151fa35df5..9d5b62cb30f7 100644
--- a/drivers/net/hamachi.c
+++ b/drivers/net/hamachi.c
@@ -1280,7 +1280,7 @@ static int hamachi_start_xmit(struct sk_buff *skb, struct net_device *dev)
                 status=readw(hmp->base + TxStatus);
                 if( !(status & 0x0001) || (status & 0x0002))
                         writew(0x0001, hmp->base + TxCmd);
-                return 1;
+                return NETDEV_TX_BUSY;
         }
 
         /* Caution: the write order is important here, set the field