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