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mlx4_en: Fix double pci unmapping. 

In cases of fragmented skb, with the data pointers being wrapped around
the TX buffer, the completion handling code would not forward the data
pointer and the firs fragment was unmapped several times, while others
were not unmapped at all.

Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Yevgeny Petrilin 2009-08-02 20:22:18 -07:00 committed by David S. Miller
parent b564afcfb8
commit eb4ad82641
1 changed files with 1 additions and 0 deletions
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drivers/net/mlx4/en_tx.c
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@ -249,6 +249,7 @@ static u32 mlx4_en_free_tx_desc(struct mlx4_en_priv *priv,
pci_unmap_page(mdev->pdev,
(dma_addr_t) be64_to_cpu(data->addr),
frag->size, PCI_DMA_TODEVICE);
++data;
}
}
/* Stamp the freed descriptor */