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nuport-mac: use dma_mapping_error() instead of checking pointers

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Thanks Gabor for spotting this

SVN-Revision: 33071
This commit is contained in:
Florian Fainelli 2012-08-09 09:06:35 +00:00
parent 7f9bfa3fcd
commit 47380a4388
1 changed files with 2 additions and 2 deletions
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4
target/linux/mcs814x/files-3.3/drivers/net/ethernet/mcs8140/nuport_mac.c
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@ -256,7 +256,7 @@ static int nuport_mac_start_tx_dma(struct nuport_mac_priv *priv,
priv->tx_addr = dma_map_single(&priv->pdev->dev, skb->data,
skb->len, DMA_TO_DEVICE);
if (!priv->tx_addr)
if (dma_mapping_error(&priv->pdev->dev, priv->tx_addr))
return -ENOMEM;
/* enable enhanced mode */
@ -299,7 +299,7 @@ static int nuport_mac_start_rx_dma(struct nuport_mac_priv *priv,
priv->rx_addr = dma_map_single(&priv->pdev->dev, skb->data,
RX_ALLOC_SIZE, DMA_FROM_DEVICE);
if (!priv->rx_addr)
if (dma_mapping_error(&priv->pdev->dev, priv->rx_addr))
return -ENOMEM;
nuport_mac_writel(priv->rx_addr, RX_BUFFER_ADDR);