diff options
Diffstat (limited to 'drivers/net/spider_net.c')
| -rw-r--r-- | drivers/net/spider_net.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/drivers/net/spider_net.c b/drivers/net/spider_net.c index 94e238f6ed31..86969191c3f7 100644 --- a/drivers/net/spider_net.c +++ b/drivers/net/spider_net.c @@ -480,6 +480,7 @@ static int spider_net_prepare_rx_descr(struct spider_net_card *card, struct spider_net_descr *descr) { + dma_addr_t buf; int error = 0; int offset; int bufsize; @@ -510,10 +511,11 @@ spider_net_prepare_rx_descr(struct spider_net_card *card, if (offset) skb_reserve(descr->skb, SPIDER_NET_RXBUF_ALIGN - offset); /* io-mmu-map the skb */ - descr->buf_addr = pci_map_single(card->pdev, descr->skb->data, + buf = pci_map_single(card->pdev, descr->skb->data, SPIDER_NET_MAX_MTU, PCI_DMA_BIDIRECTIONAL); - if (descr->buf_addr == DMA_ERROR_CODE) { + descr->buf_addr = buf; + if (buf == DMA_ERROR_CODE) { dev_kfree_skb_any(descr->skb); if (netif_msg_rx_err(card)) pr_err("Could not iommu-map rx buffer\n"); @@ -914,15 +916,16 @@ spider_net_prepare_tx_descr(struct spider_net_card *card, struct spider_net_descr *descr, struct sk_buff *skb) { - descr->buf_addr = pci_map_single(card->pdev, skb->data, - skb->len, PCI_DMA_BIDIRECTIONAL); - if (descr->buf_addr == DMA_ERROR_CODE) { + dma_addr_t buf = pci_map_single(card->pdev, skb->data, + skb->len, PCI_DMA_BIDIRECTIONAL); + if (buf == DMA_ERROR_CODE) { if (netif_msg_tx_err(card)) pr_err("could not iommu-map packet (%p, %i). " "Dropping packet\n", skb->data, skb->len); return -ENOMEM; } + descr->buf_addr = buf; descr->buf_size = skb->len; descr->skb = skb; descr->data_status = 0; |