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r6040: fix ifconfig down and freeing of tx/rx descriptors 

This patch fixes warnings and such traces that appear when doing
an ifconfig down on the interface:

WARNING: at arch/x86/kernel/pci-dma.c:376 dma_free_coherent+0x40/0x7d()
Modules linked in:

Signed-off-by: Joe Chou <joe.chou@rdc.com.tw>
Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Florian Fainelli 2009-01-09 23:19:26 -08:00 committed by David S. Miller
parent 216c32d440
commit 58854c6b41
1 changed files with 21 additions and 11 deletions
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32
drivers/net/r6040.c
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@ -457,22 +457,12 @@ static void r6040_down(struct net_device *dev)
iowrite16(adrp[0], ioaddr + MID_0L);
iowrite16(adrp[1], ioaddr + MID_0M);
iowrite16(adrp[2], ioaddr + MID_0H);
free_irq(dev->irq, dev);
/* Free RX buffer */
r6040_free_rxbufs(dev);
/* Free TX buffer */
r6040_free_txbufs(dev);
/* Free Descriptor memory */
pci_free_consistent(pdev, RX_DESC_SIZE, lp->rx_ring, lp->rx_ring_dma);
pci_free_consistent(pdev, TX_DESC_SIZE, lp->tx_ring, lp->tx_ring_dma);
}
static int r6040_close(struct net_device *dev)
{
struct r6040_private *lp = netdev_priv(dev);
struct pci_dev *pdev = lp->pdev;
/* deleted timer */
del_timer_sync(&lp->timer);
@ -481,8 +471,28 @@ static int r6040_close(struct net_device *dev)
napi_disable(&lp->napi);
netif_stop_queue(dev);
r6040_down(dev);
free_irq(dev->irq, dev);
/* Free RX buffer */
r6040_free_rxbufs(dev);
/* Free TX buffer */
r6040_free_txbufs(dev);
spin_unlock_irq(&lp->lock);
/* Free Descriptor memory */
if (lp->rx_ring) {
pci_free_consistent(pdev, RX_DESC_SIZE, lp->rx_ring, lp->rx_ring_dma);
lp->rx_ring = 0;
}
if (lp->tx_ring) {
pci_free_consistent(pdev, TX_DESC_SIZE, lp->tx_ring, lp->tx_ring_dma);
lp->tx_ring = 0;
}
return 0;
}