From 638266f7e879e34de4a4635049c15f5a58505e75 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Thu, 11 Sep 2008 15:45:19 -0700 Subject: [PATCH] tg3: Fix DMA mapping leak in tigon3_dma_hwbug_workaround(). Noticed by Michael Chan. Signed-off-by: David S. Miller --- drivers/net/tg3.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c index 355e8bcf6fed..123920759efd 100644 --- a/drivers/net/tg3.c +++ b/drivers/net/tg3.c @@ -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; -- 2.30.2