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, 2 insertions, 2 deletions

diff --git a/drivers/net/depca.c b/drivers/net/depca.c
index 9301eb28d9e2..97ea2d6d3fe1 100644
--- a/drivers/net/depca.c
+++ b/drivers/net/depca.c
@@ -957,7 +957,7 @@ static int depca_start_xmit(struct sk_buff *skb, struct net_device *dev)
                 if (TX_BUFFS_AVAIL)
                         netif_start_queue(dev);
         } else
-                status = -1;
+                status = NETDEV_TX_LOCKED;
 
       out:
         return status;
@@ -1839,7 +1839,7 @@ static int load_packet(struct net_device *dev, struct sk_buff *skb)
 
                 lp->tx_new = (++end) & lp->txRingMask;  /* update current pointers */
         } else {
-                status = -1;
+                status = NETDEV_TX_LOCKED;
         }
 
         return status;