diff options
| author | Lorenzo Bianconi <lorenzo@kernel.org> | 2020-08-24 21:55:12 +0300 |
|---|---|---|
| committer | Felix Fietkau <nbd@nbd.name> | 2020-09-24 19:10:15 +0300 |
| commit | 8da40d698111ad27b03afc40d67843e3073395e7 (patch) | |
| tree | 27b2c8438e8991a087196c610cd032349777e3f3 | |
| parent | ce8463a726a5669b200a1c2c17f95bc1394cc6bf (diff) | |
| download | linux-8da40d698111ad27b03afc40d67843e3073395e7.tar.xz | |
mt76: mt7663u: fix dma header initialization
Fix length field corruption in usb dma header introduced adding sdio
support
Fixes: 75b10f0cbd0b ("mt76: mt76u: add mt76_skb_adjust_pad utility routine")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
| -rw-r--r-- | drivers/net/wireless/mediatek/mt76/mt7615/usb_mcu.c | 4 | ||||
| -rw-r--r-- | drivers/net/wireless/mediatek/mt76/mt7615/usb_sdio.c | 7 |
2 files changed, 8 insertions, 3 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/usb_mcu.c b/drivers/net/wireless/mediatek/mt76/mt7615/usb_mcu.c index 0b33df3e3bfe..adbed373798e 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7615/usb_mcu.c +++ b/drivers/net/wireless/mediatek/mt76/mt7615/usb_mcu.c @@ -19,6 +19,7 @@ mt7663u_mcu_send_message(struct mt76_dev *mdev, struct sk_buff *skb, { struct mt7615_dev *dev = container_of(mdev, struct mt7615_dev, mt76); int ret, seq, ep; + u32 len; mutex_lock(&mdev->mcu.mutex); @@ -28,7 +29,8 @@ mt7663u_mcu_send_message(struct mt76_dev *mdev, struct sk_buff *skb, else ep = MT_EP_OUT_AC_BE; - put_unaligned_le32(skb->len, skb_push(skb, sizeof(skb->len))); + len = skb->len; + put_unaligned_le32(len, skb_push(skb, sizeof(len))); ret = mt76_skb_adjust_pad(skb); if (ret < 0) goto out; diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/usb_sdio.c b/drivers/net/wireless/mediatek/mt76/mt7615/usb_sdio.c index 6dffdaaa9ad5..294276e2280d 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7615/usb_sdio.c +++ b/drivers/net/wireless/mediatek/mt76/mt7615/usb_sdio.c @@ -259,8 +259,11 @@ int mt7663_usb_sdio_tx_prepare_skb(struct mt76_dev *mdev, void *txwi_ptr, } mt7663_usb_sdio_write_txwi(dev, wcid, qid, sta, skb); - if (mt76_is_usb(mdev)) - put_unaligned_le32(skb->len, skb_push(skb, sizeof(skb->len))); + if (mt76_is_usb(mdev)) { + u32 len = skb->len; + + put_unaligned_le32(len, skb_push(skb, sizeof(len))); + } return mt76_skb_adjust_pad(skb); } |