diff options
| author |   Stephen Hemminger <shemminger@vyatta.com> | 2008-04-27 14:36:59 +0200 |
|---|---|---|
| committer |   Francois Romieu <romieu@fr.zoreil.com> | 2008-04-27 14:36:59 +0200 |
| commit | 4709aa59ede5ff9902d60088d93d1c0e2e9d2247 (patch) | |
| tree | 8317f78faec39ab664dd28250923aff647c0dfab /drivers/net/sis190.c | |
| parent | [netdrvr] tehuti: move ioctl perm check closer to function start (diff) | |
| download | linux-dev-4709aa59ede5ff9902d60088d93d1c0e2e9d2247.tar.xz linux-dev-4709aa59ede5ff9902d60088d93d1c0e2e9d2247.zip | |
sis190: use the allocated buffer as a status code in sis190_alloc_rx_skb
The local status code does not carry mory information.
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Acked-by: Francois Romieu <romieu@fr.zoreil.com>
Diffstat (limited to 'drivers/net/sis190.c')
| -rw-r--r-- | drivers/net/sis190.c | 37 |
1 files changed, 15 insertions, 22 deletions
diff --git a/drivers/net/sis190.c b/drivers/net/sis190.c index 20745fd4e973..0d6aa1fc9c68 100644 --- a/drivers/net/sis190.c +++ b/drivers/net/sis190.c @@ -480,30 +480,22 @@ static inline void sis190_make_unusable_by_asic(struct RxDesc *desc) desc->status = 0x0; } -static int sis190_alloc_rx_skb(struct pci_dev *pdev, struct sk_buff **sk_buff, - struct RxDesc *desc, u32 rx_buf_sz) +static struct sk_buff *sis190_alloc_rx_skb(struct pci_dev *pdev, + struct RxDesc *desc, u32 rx_buf_sz) { struct sk_buff *skb; - dma_addr_t mapping; - int ret = 0; skb = dev_alloc_skb(rx_buf_sz); - if (!skb) - goto err_out; - - *sk_buff = skb; - - mapping = pci_map_single(pdev, skb->data, rx_buf_sz, - PCI_DMA_FROMDEVICE); + if (likely(skb)) { + dma_addr_t mapping; - sis190_map_to_asic(desc, mapping, rx_buf_sz); -out: - return ret; + mapping = pci_map_single(pdev, skb->data, rx_buf_sz, + PCI_DMA_FROMDEVICE); + sis190_map_to_asic(desc, mapping, rx_buf_sz); + } else + sis190_make_unusable_by_asic(desc); -err_out: - ret = -ENOMEM; - sis190_make_unusable_by_asic(desc); - goto out; + return skb; } static u32 sis190_rx_fill(struct sis190_private *tp, struct net_device *dev, @@ -512,14 +504,15 @@ static u32 sis190_rx_fill(struct sis190_private *tp, struct net_device *dev, u32 cur; for (cur = start; cur < end; cur++) { - int ret, i = cur % NUM_RX_DESC; + unsigned int i = cur % NUM_RX_DESC; if (tp->Rx_skbuff[i]) continue; - ret = sis190_alloc_rx_skb(tp->pci_dev, tp->Rx_skbuff + i, - tp->RxDescRing + i, tp->rx_buf_sz); - if (ret < 0) + tp->Rx_skbuff[i] = sis190_alloc_rx_skb(tp->pci_dev, + tp->RxDescRing + i, + tp->rx_buf_sz); + if (!tp->Rx_skbuff[i]) break; } return cur - start; |