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net: fix network driver ndo_start_xmit() return values (part 1)

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Fix up drivers that return an errno value to qdisc_restart(), causing
qdisc_restart() to print a warning and requeue/retransmit the skb.

- xpnet: memory allocation error, intention is to drop
- ethoc: oversized packet, packet must be dropped
- ibmlana: skb freed: use after free
- rrunner: skb freed: use after free

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Patrick McHardy
2009-06-12 03:00:35 +00:00
committed by David S. Miller
parent da6782927d
commit 3790c8cdb9
4 changed files with 8 additions and 8 deletions
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5
drivers/net/ibmlana.c
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@@ -815,7 +815,7 @@ static int ibmlana_close(struct net_device *dev)
static int ibmlana_tx(struct sk_buff *skb, struct net_device *dev)
{
ibmlana_priv *priv = netdev_priv(dev);
int retval = 0, tmplen, addr;
int tmplen, addr;
unsigned long flags;
tda_t tda;
int baddr;
@@ -824,7 +824,6 @@ static int ibmlana_tx(struct sk_buff *skb, struct net_device *dev)
the upper layer is in deep desperation and we simply ignore the frame. */
if (priv->txusedcnt >= TXBUFCNT) {
retval = -EIO;
dev->stats.tx_dropped++;
goto tx_done;
}
@@ -874,7 +873,7 @@ static int ibmlana_tx(struct sk_buff *skb, struct net_device *dev)
spin_unlock_irqrestore(&priv->lock, flags);
tx_done:
dev_kfree_skb(skb);
return retval;
return NETDEV_TX_OK;
}
/* switch receiver mode. */