From edee39321be9f88c47627379e8abadfce0508768 Mon Sep 17 00:00:00 2001 From: Jiri Slaby Date: Tue, 16 Mar 2010 04:53:50 +0000 Subject: [PATCH] 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 Cc: Tristram Ha Cc: David S. Miller Signed-off-by: David S. Miller --- drivers/net/ksz884x.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/net/ksz884x.c b/drivers/net/ksz884x.c index 7264a3e5c2c0..0f59099ee72f 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; -- 2.11.0