Commit 0f74b29a authored by 蒋家盛's avatar 蒋家盛 Committed by David S. Miller
Browse files

atm: eni: Add check for dma_map_single 



As the potential failure of the dma_map_single(),
it should be better to check it and return error
if fails.

Fixes: 1da177e4 ("Linux-2.6.12-rc2")
Signed-off-by: default avatarJiasheng Jiang <jiasheng@iscas.ac.cn>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent c700525f

drivers/atm/eni.c

+2 −0
Original line number Diff line number Diff line
@@ -1112,6 +1112,8 @@ DPRINTK("iovcnt = %d\n",skb_shinfo(skb)->nr_frags); 
	skb_data3 = skb->data[3];

	paddr = dma_map_single(&eni_dev->pci_dev->dev,skb->data,skb->len,

			       DMA_TO_DEVICE);

	if (dma_mapping_error(&eni_dev->pci_dev->dev, paddr))

		return enq_next;

	ENI_PRV_PADDR(skb) = paddr;

	/* prepare DMA queue entries */

	j = 0;