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netxen: fix infinite loop on dma mapping failure

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Fix a perpetual while() loop in unwinding partial
mapped tx skb on dma mapping failure.

Reported-by: "Juha Leppanen" <juha_motorsportcom@luukku.com>
Signed-off-by: Dhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Dhananjay Phadke 2009-09-03 13:10:55 +00:00 committed by David S. Miller
parent 270e57e133
commit cf503e8f45
1 changed files with 2 additions and 2 deletions
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4
drivers/net/netxen/netxen_nic_main.c
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@ -1577,8 +1577,8 @@ netxen_map_tx_skb(struct pci_dev *pdev,
return 0;
unwind:
while (i > 0) {
nf = &pbuf->frag_array[i];
while (--i >= 0) {
nf = &pbuf->frag_array[i+1];
pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
}