From: Denis Kirjanov <kirjanov@gmail.com>
Date: Sun, 10 Jan 2010 21:40:10 +0000 (-0800)
Subject: vxge: use pci_dma_mapping_error to test return value
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=fa15e99b6bb44aa86b241a43ca8c509e91f80153;p=sagit-ice-cold%2Fkernel_xiaomi_msm8998.git

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 0fdfd58a35a1..b9685e82f7b6 100644
--- 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;
 	}