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/3c527.c b/drivers/net/3c527.c
index c10ca30458f6..aaa8a9f405d4 100644
--- a/drivers/net/3c527.c
+++ b/drivers/net/3c527.c
@@ -1030,7 +1030,7 @@ static int mc32_send_packet(struct sk_buff *skb, struct net_device *dev)
         netif_stop_queue(dev);
 
         if(atomic_read(&lp->tx_count)==0) {
-                return 1;
+                return NETDEV_TX_BUSY;
         }
 
         if (skb_padto(skb, ETH_ZLEN)) {