Commit 7dcf3c04 authored by Felix Fietkau's avatar Felix Fietkau
Browse files

mt76: mt7915: fix tx skb dma unmap 



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

Reported-by: default avatarBen Greear <greearb@candelatech.com>
Fixes: 27d5c528 ("mt76: fix double DMA unmap of the first buffer on 7615/7915")
Signed-off-by: default avatarFelix Fietkau <nbd@nbd.name>
parent ebee7885

drivers/net/wireless/mediatek/mt76/mt7915/mac.c

+1 −1
Original line number Diff line number Diff line
@@ -1136,7 +1136,7 @@ void mt7915_txp_skb_unmap(struct mt76_dev *dev, 
	int i;



	txp = mt7915_txwi_to_txp(dev, t);

	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);

}