This is a note to let you know that I've just added the patch titled
thermal/drivers/mediatek/lvts_thermal: Fix a memory leak in an error handling path
to the 6.6-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
thermal-drivers-mediatek-lvts_thermal-fix-a-memory-l.patch
and it can be found in the queue-6.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit d40678e4b01a4a48d109f475100044461f1dae80
Author: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
Date: Sun Jan 28 09:38:10 2024 +0100
thermal/drivers/mediatek/lvts_thermal: Fix a memory leak in an error handling path
[ Upstream commit ca93bf607a44c1f009283dac4af7df0d9ae5e357 ]
If devm_krealloc() fails, then 'efuse' is leaking.
So free it to avoid a leak.
Fixes: f5f633b18234 ("thermal/drivers/mediatek: Add the Low Voltage Thermal Sensor driver")
Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
Reviewed-by: Matthias Brugger <matthias.bgg@xxxxxxxxx>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxx>
Signed-off-by: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx>
Link: https://lore.kernel.org/r/481d345233862d58c3c305855a93d0dbc2bbae7e.1706431063.git.christophe.jaillet@xxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/thermal/mediatek/lvts_thermal.c b/drivers/thermal/mediatek/lvts_thermal.c
index effd9b00a424b..a4e56017dda3f 100644
--- a/drivers/thermal/mediatek/lvts_thermal.c
+++ b/drivers/thermal/mediatek/lvts_thermal.c
@@ -679,8 +679,10 @@ static int lvts_calibration_read(struct device *dev, struct lvts_domain *lvts_td
lvts_td->calib = devm_krealloc(dev, lvts_td->calib,
lvts_td->calib_len + len, GFP_KERNEL);
- if (!lvts_td->calib)
+ if (!lvts_td->calib) {
+ kfree(efuse);
return -ENOMEM;
+ }
memcpy(lvts_td->calib + lvts_td->calib_len, efuse, len);
