A driver shouldn't compare to DMA_ERROR_CODE directly, use
pci_dma_mapping_error() instead.
Signed-off-by: Olof Johansson <[EMAIL PROTECTED]>
Index: linux-2.6/drivers/net/spider_net.c
===================================================================
--- linux-2.6.orig/drivers/net/spider_net.c
+++ linux-2.6/drivers/net/spider_net.c
@@ -317,7 +317,7 @@ spider_net_init_chain(struct spider_net_
SPIDER_NET_DESCR_SIZE,
direction);
- if (buf == DMA_ERROR_CODE)
+ if (pci_dma_mapping_error(buf))
goto iommu_error;
descr->bus_addr = buf;
@@ -420,7 +420,7 @@ spider_net_prepare_rx_descr(struct spide
buf = pci_map_single(card->pdev, descr->skb->data,
SPIDER_NET_MAX_FRAME, PCI_DMA_FROMDEVICE);
descr->buf_addr = buf;
- if (buf == DMA_ERROR_CODE) {
+ if (pci_dma_mapping_error(buf)) {
dev_kfree_skb_any(descr->skb);
if (netif_msg_rx_err(card) && net_ratelimit())
pr_err("Could not iommu-map rx buffer\n");
@@ -649,7 +649,7 @@ spider_net_prepare_tx_descr(struct spide
dma_addr_t buf;
buf = pci_map_single(card->pdev, skb->data, skb->len, PCI_DMA_TODEVICE);
- if (buf == DMA_ERROR_CODE) {
+ if (pci_dma_mapping_error(buf)) {
if (netif_msg_tx_err(card) && net_ratelimit())
pr_err("could not iommu-map packet (%p, %i). "
"Dropping packet\n", skb->data, skb->len);
-
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