diff options
| author | Howard Hsu <howard-yh.hsu@mediatek.com> | 2024-03-20 14:09:14 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-05-30 10:44:30 +0300 |
| commit | ef46dbb93fc9279fb7de883aac22abffe214e6b5 (patch) | |
| tree | 81880ee815d7c9067b6813d1f4b10c208370941e /drivers/net/wireless/mediatek/mt76 | |
| parent | 4bbb2040194413ea73c289e8d25862807651e6ac (diff) | |
| download | linux-ef46dbb93fc9279fb7de883aac22abffe214e6b5.tar.xz | |
wifi: mt76: mt7996: fix potential memory leakage when reading chip temperature
[ Upstream commit 474b9412f33be87076b40a49756662594598a85e ]
Without this commit, reading chip temperature will cause memory leakage.
Fixes: 6879b2e94172 ("wifi: mt76: mt7996: add thermal sensor device support")
Reported-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Howard Hsu <howard-yh.hsu@mediatek.com>
Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/net/wireless/mediatek/mt76')
| -rw-r--r-- | drivers/net/wireless/mediatek/mt76/mt7996/mcu.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c index cfb5a7d348eb..e86c05d0eecc 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c +++ b/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c @@ -3729,6 +3729,7 @@ int mt7996_mcu_get_temperature(struct mt7996_phy *phy) } __packed * res; struct sk_buff *skb; int ret; + u32 temp; ret = mt76_mcu_send_and_get_msg(&phy->dev->mt76, MCU_WM_UNI_CMD(THERMAL), &req, sizeof(req), true, &skb); @@ -3736,8 +3737,10 @@ int mt7996_mcu_get_temperature(struct mt7996_phy *phy) return ret; res = (void *)skb->data; + temp = le32_to_cpu(res->temperature); + dev_kfree_skb(skb); - return le32_to_cpu(res->temperature); + return temp; } int mt7996_mcu_set_thermal_throttling(struct mt7996_phy *phy, u8 state) |