vxge: use pci_dma_mapping_error to test return value

pci_dma_mapping_error should be used to test return value of
pci_map_single or pci_map_page.

Signed-off-by: Denis Kirjanov <kirjanov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/vxge/vxge-main.c b/drivers/net/vxge/vxge-main.c
index 0fdfd58a35a1bc9572c27b164b4ed8e81a0060e1..b9685e82f7b66b4c2b08cd9cc177d3b9cae808d8 100644 (file)
--- a/drivers/net/vxge/vxge-main.c
+++ b/drivers/net/vxge/vxge-main.c
@@ -310,7 +310,7 @@ static int vxge_rx_map(void *dtrh, struct vxge_ring *ring)
        dma_addr = pci_map_single(ring->pdev, rx_priv->skb_data,
                                rx_priv->data_size, PCI_DMA_FROMDEVICE);
 
-       if (dma_addr == 0) {
+       if (unlikely(pci_dma_mapping_error(ring->pdev, dma_addr))) {
                ring->stats.pci_map_fail++;
                return -EIO;
        }