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 10:49:20 +0300 |
| commit | 84e81f9b4818b8efe89beb12a246d5d510631939 (patch) | |
| tree | 8353b7115483d86300bef35f46cefc94c7191e05 /drivers | |
| parent | bea4afe1317d7f0d2f341bdaf36503248b4a895d (diff) | |
| download | linux-84e81f9b4818b8efe89beb12a246d5d510631939.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')
| -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 25ea81ecdab9..10d13fa45c5a 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c +++ b/drivers/net/wireless/mediatek/mt76/mt7996/mcu.c @@ -3733,6 +3733,7 @@ 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); @@ -3740,8 +3741,10 @@ 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) |