6.13-stable review patch. If anyone has any objections, please let me know.
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From: xueqin Luo luoxueqin@kylinos.cn
[ Upstream commit 5adbc8ce5bbe7e311e2600b7d7d998a958873e98 ]
DIV_ROUND_CLOSEST() after kstrtoul() results in an overflow if a large number such as 18446744073709551615 is provided by the user. Fix it by reordering clamp_val() and DIV_ROUND_CLOSEST() operations. This commit was inspired by commit: 57ee12b6c514.
Fixes: 6879b2e94172 ("wifi: mt76: mt7996: add thermal sensor device support") Signed-off-by: xueqin Luo luoxueqin@kylinos.cn Link: https://patch.msgid.link/20241202031917.23741-2-luoxueqin@kylinos.cn Signed-off-by: Felix Fietkau nbd@nbd.name Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/wireless/mediatek/mt76/mt7996/init.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/init.c b/drivers/net/wireless/mediatek/mt76/mt7996/init.c index efa7b0697a406..d5f53abc4dcb4 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7996/init.c +++ b/drivers/net/wireless/mediatek/mt76/mt7996/init.c @@ -82,7 +82,7 @@ static ssize_t mt7996_thermal_temp_store(struct device *dev, return ret;
mutex_lock(&phy->dev->mt76.mutex); - val = clamp_val(DIV_ROUND_CLOSEST(val, 1000), 40, 130); + val = DIV_ROUND_CLOSEST(clamp_val(val, 40 * 1000, 130 * 1000), 1000);
/* add a safety margin ~10 */ if ((i - 1 == MT7996_CRIT_TEMP_IDX &&