tg3: Fix DMA mapping leak in tigon3_dma_hwbug_workaround().
Noticed by Michael Chan. Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -4631,6 +4631,9 @@ static int tigon3_dma_hwbug_workaround(struct tg3 *tp, struct sk_buff *skb,
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* Drop the packet if it does.
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*/
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if (ret || tg3_4g_overflow_test(new_addr, new_skb->len)) {
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if (!ret)
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skb_dma_unmap(&tp->pdev->dev, new_skb,
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DMA_TO_DEVICE);
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ret = -1;
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dev_kfree_skb(new_skb);
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new_skb = NULL;
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