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authorJiri Slaby <jslaby@suse.cz>2010-03-16 04:53:50 +0000
committerDavid S. Miller <davem@davemloft.net>2010-03-16 14:15:41 -0700
commitedee39321be9f88c47627379e8abadfce0508768 (patch)
tree455df0017e6d6be1d16ccb415fc0205097953e04 /drivers/net/ksz884x.c
parent6ad34145cf809384359fe513481d6e16638a57a3 (diff)
NET: ksz884x, fix lock imbalance
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 <jslaby@suse.cz> Cc: Tristram Ha <Tristram.Ha@micrel.com> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ksz884x.c')
-rw-r--r--drivers/net/ksz884x.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/net/ksz884x.c b/drivers/net/ksz884x.c
index 7264a3e5c2c..0f59099ee72 100644
--- a/drivers/net/ksz884x.c
+++ b/drivers/net/ksz884x.c
@@ -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;