From cf503e8f458cec455b18d3938b3b27de6db3105e Mon Sep 17 00:00:00 2001 From: Dhananjay Phadke Date: Thu, 3 Sep 2009 13:10:55 +0000 Subject: netxen: fix infinite loop on dma mapping failure Fix a perpetual while() loop in unwinding partial mapped tx skb on dma mapping failure. Reported-by: "Juha Leppanen" Signed-off-by: Dhananjay Phadke Signed-off-by: David S. Miller --- drivers/net/netxen/netxen_nic_main.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/netxen/netxen_nic_main.c b/drivers/net/netxen/netxen_nic_main.c index 53d57dc4d644..41b29671fc9a 100644 --- a/drivers/net/netxen/netxen_nic_main.c +++ b/drivers/net/netxen/netxen_nic_main.c @@ -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); } -- cgit v1.2.1