diff options
| author | Felix Fietkau <nbd@nbd.name> | 2021-02-13 20:44:10 +0300 |
|---|---|---|
| committer | Felix Fietkau <nbd@nbd.name> | 2021-04-11 19:50:38 +0300 |
| commit | 7dcf3c04f0aca746517a77433b33d40868ca4749 (patch) | |
| tree | 5d0f6b19588c69a6aa5bb24571af30305713fb09 | |
| parent | ebee7885bb12a8fe2c2f9bac87dbd87a05b645f9 (diff) | |
| download | linux-7dcf3c04f0aca746517a77433b33d40868ca4749.tar.xz | |
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: Ben Greear <greearb@candelatech.com>
Fixes: 27d5c528a7ca ("mt76: fix double DMA unmap of the first buffer on 7615/7915")
Signed-off-by: Felix Fietkau <nbd@nbd.name>
| -rw-r--r-- | drivers/net/wireless/mediatek/mt76/mt7915/mac.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mac.c b/drivers/net/wireless/mediatek/mt76/mt7915/mac.c index 1a7291caf099..b5a41cb7fbda 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7915/mac.c +++ b/drivers/net/wireless/mediatek/mt76/mt7915/mac.c @@ -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); } |