From 5b2c4b972c0226406361f83b747eb5cdab51e68e Mon Sep 17 00:00:00 2001 From: Patrick McHardy Date: Fri, 12 Jun 2009 06:14:36 +0000 Subject: [PATCH] net: fix network drivers ndo_start_xmit() return values (part 8) Fix up USB drivers that return an errno value (result of usb_submit_urb()) to qdisc_restart(), causing qdisc_restart() to print a warning and requeue/ retransmit the skb. - hso: skb is freed: use after free - at76_usb: skb is freed: use after free Compile tested only. Signed-off-by: Patrick McHardy Signed-off-by: David S. Miller --- drivers/net/usb/hso.c | 2 +- drivers/staging/at76_usb/at76_usb.c | 7 +++---- 2 files changed, 4 insertions(+), 5 deletions(-) diff --git a/drivers/net/usb/hso.c b/drivers/net/usb/hso.c index e3580f42c899..f8c6d7ea7264 100644 --- a/drivers/net/usb/hso.c +++ b/drivers/net/usb/hso.c @@ -816,7 +816,7 @@ static int hso_net_start_xmit(struct sk_buff *skb, struct net_device *net) } dev_kfree_skb(skb); /* we're done */ - return result; + return NETDEV_TX_OK; } static void hso_get_drvinfo(struct net_device *net, struct ethtool_drvinfo *info) diff --git a/drivers/staging/at76_usb/at76_usb.c b/drivers/staging/at76_usb/at76_usb.c index c8af9a868d62..3f303ae97b43 100644 --- a/drivers/staging/at76_usb/at76_usb.c +++ b/drivers/staging/at76_usb/at76_usb.c @@ -3242,12 +3242,11 @@ static int at76_tx(struct sk_buff *skb, struct net_device *netdev) "%s: -EINVAL: tx urb %p hcpriv %p complete %p\n", priv->netdev->name, priv->tx_urb, priv->tx_urb->hcpriv, priv->tx_urb->complete); - } else { + } else stats->tx_bytes += skb->len; - dev_kfree_skb(skb); - } - return ret; + dev_kfree_skb(skb); + return NETDEV_TX_OK; } static void at76_tx_timeout(struct net_device *netdev)