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mt76: mt7615: fix tx skb dma unmap

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[ Upstream commit ebee7885bb ]

The first pointer in the txp needs to be unmapped as well, otherwise it will
leak DMA mapping entries

Fixes: 27d5c528a7 ("mt76: fix double DMA unmap of the first buffer on 7615/7915")
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Felix Fietkau 2021-02-13 18:42:15 +01:00 • committed by Greg Kroah-Hartman
commit 75bc5f779a
1 changed files with 1 additions and 1 deletions
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2
drivers/net/wireless/mediatek/mt76/mt7615/mac.c
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@ -688,7 +688,7 @@ mt7615_txp_skb_unmap_fw(struct mt76_dev *dev, struct mt7615_fw_txp *txp)
{
int i;
for (i = 1; i < txp->nbuf; i++)
for (i = 0; i < txp->nbuf; i++)
dma_unmap_single(dev->dev, le32_to_cpu(txp->buf[i]),
le16_to_cpu(txp->len[i]), DMA_TO_DEVICE);
}