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[mcs814x] nuport-mac: check dma_map_single address return values

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@33067 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
florian 2012-08-08 21:51:04 +00:00
parent d1e20e7b57
commit 403b1f1906
1 changed files with 4 additions and 0 deletions
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4
target/linux/mcs814x/files-3.3/drivers/net/ethernet/mcs8140/nuport_mac.c
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@ -256,6 +256,8 @@ 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)
return -ENOMEM;
/* enable enhanced mode */
nuport_mac_writel(TX_DMA_ENH_ENABLE, TX_DMA_ENH);
@ -297,6 +299,8 @@ 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)
return -ENOMEM;
nuport_mac_writel(priv->rx_addr, RX_BUFFER_ADDR);
wmb();