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/tokenring/smctr.c b/drivers/net/tokenring/smctr.c
index a91d9c55d78e..54ad4ed03374 100644
--- a/drivers/net/tokenring/smctr.c
+++ b/drivers/net/tokenring/smctr.c
@@ -4601,7 +4601,7 @@ static int smctr_send_packet(struct sk_buff *skb, struct net_device *dev)
         netif_stop_queue(dev);
 
         if(tp->QueueSkb == 0)
-                return (1);     /* Return with tbusy set: queue full */
+                return NETDEV_TX_BUSY;     /* Return with tbusy set: queue full */
 
         tp->QueueSkb--;
         skb_queue_tail(&tp->SendSkbQueue, skb);