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8139cp: balance dma_map_single vs dma_unmap_single pair

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The driver always:
1. allocate cp->rx_buf_sz + NET_IP_ALIGN
2. map cp->rx_buf_sz

Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Francois Romieu 2009-08-12 22:18:14 -07:00 committed by David S. Miller
parent 9799218ae3
commit 839d1624b9
1 changed files with 2 additions and 3 deletions
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5
drivers/net/8139cp.c
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@ -515,7 +515,7 @@ static int cp_rx_poll(struct napi_struct *napi, int budget)
dma_addr_t mapping; dma_addr_t mapping;
struct sk_buff *skb, *new_skb; struct sk_buff *skb, *new_skb;
struct cp_desc *desc; struct cp_desc *desc;
unsigned buflen; const unsigned buflen = cp->rx_buf_sz;
skb = cp->rx_skb[rx_tail]; skb = cp->rx_skb[rx_tail];
BUG_ON(!skb); BUG_ON(!skb);
@ -549,8 +549,7 @@ static int cp_rx_poll(struct napi_struct *napi, int budget)
pr_debug("%s: rx slot %d status 0x%x len %d\n", pr_debug("%s: rx slot %d status 0x%x len %d\n",
dev->name, rx_tail, status, len); dev->name, rx_tail, status, len);
buflen = cp->rx_buf_sz + NET_IP_ALIGN; new_skb = netdev_alloc_skb(dev, buflen + NET_IP_ALIGN);
new_skb = netdev_alloc_skb(dev, buflen);
if (!new_skb) { if (!new_skb) {
dev->stats.rx_dropped++; dev->stats.rx_dropped++;
goto rx_next; goto rx_next;