[PATCH] b44: b44_start_xmit returns with a lock held when it fails allocating
The patch simply factors out the release of the lock.
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
diff --git a/drivers/net/b44.c b/drivers/net/b44.c
index 0ee3e27..b334cc3 100644
--- a/drivers/net/b44.c
+++ b/drivers/net/b44.c
@@ -948,6 +948,7 @@
{
struct b44 *bp = netdev_priv(dev);
struct sk_buff *bounce_skb;
+ int rc = NETDEV_TX_OK;
dma_addr_t mapping;
u32 len, entry, ctrl;
@@ -957,10 +958,9 @@
/* This is a hard error, log it. */
if (unlikely(TX_BUFFS_AVAIL(bp) < 1)) {
netif_stop_queue(dev);
- spin_unlock_irq(&bp->lock);
printk(KERN_ERR PFX "%s: BUG! Tx Ring full when queue awake!\n",
dev->name);
- return 1;
+ goto err_out;
}
mapping = pci_map_single(bp->pdev, skb->data, len, PCI_DMA_TODEVICE);
@@ -971,7 +971,7 @@
bounce_skb = __dev_alloc_skb(TX_PKT_BUF_SZ,
GFP_ATOMIC|GFP_DMA);
if (!bounce_skb)
- return NETDEV_TX_BUSY;
+ goto err_out;
mapping = pci_map_single(bp->pdev, bounce_skb->data,
len, PCI_DMA_TODEVICE);
@@ -979,7 +979,7 @@
pci_unmap_single(bp->pdev, mapping,
len, PCI_DMA_TODEVICE);
dev_kfree_skb_any(bounce_skb);
- return NETDEV_TX_BUSY;
+ goto err_out;
}
memcpy(skb_put(bounce_skb, len), skb->data, skb->len);
@@ -1019,11 +1019,16 @@
if (TX_BUFFS_AVAIL(bp) < 1)
netif_stop_queue(dev);
- spin_unlock_irq(&bp->lock);
-
dev->trans_start = jiffies;
- return 0;
+out_unlock:
+ spin_unlock_irq(&bp->lock);
+
+ return rc;
+
+err_out:
+ rc = NETDEV_TX_BUSY;
+ goto out_unlock;
}
static int b44_change_mtu(struct net_device *dev, int new_mtu)