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NET: ksz884x, fix lock imbalance

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Stanse found that one error path (when alloc_skb fails) in netdev_tx
omits to unlock hw_priv->hwlock. Fix that.

Signed-off-by: Jiri Slaby <[email protected]>
Cc: Tristram Ha <[email protected]>
Cc: David S. Miller <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Jiri Slaby 2010-03-16 04:53:50 +00:00 • committed by David S. Miller
commit edee39321b
1 changed files with 5 additions and 3 deletions
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8
drivers/net/ksz884x.c
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@ -4899,8 +4899,10 @@ static int netdev_tx(struct sk_buff *skb, struct net_device *dev)
struct sk_buff *org_skb = skb;
skb = dev_alloc_skb(org_skb->len);
if (!skb)
return NETDEV_TX_BUSY;
if (!skb) {
rc = NETDEV_TX_BUSY;
goto unlock;
}
skb_copy_and_csum_dev(org_skb, skb->data);
org_skb->ip_summed = 0;
skb->len = org_skb->len;
@ -4914,7 +4916,7 @@ static int netdev_tx(struct sk_buff *skb, struct net_device *dev)
netif_stop_queue(dev);
rc = NETDEV_TX_BUSY;
}
unlock:
spin_unlock_irq(&hw_priv->hwlock);
return rc;