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/dm9000.c b/drivers/net/dm9000.c
index e402e91bf188..dd771dea6ae6 100644
--- a/drivers/net/dm9000.c
+++ b/drivers/net/dm9000.c
@@ -756,7 +756,7 @@ dm9000_start_xmit(struct sk_buff *skb, struct net_device *dev)
         dm9000_dbg(db, 3, "%s:\n", __func__);
 
         if (db->tx_pkt_cnt > 1)
-                return 1;
+                return NETDEV_TX_BUSY;
 
         spin_lock_irqsave(&db->lock, flags);