4.9-stable review patch. If anyone has any objections, please let me know.
------------------
From: Hans de Goede <hdegoede@xxxxxxxxxx>
[ Upstream commit 6f074bc878dc9b00c0df0bf3a8cb1d9e294cd881 ]
If reading the register fails, return the actual error code, instead
of the uninitialized val variable;
Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx>
Signed-off-by: Sebastian Reichel <sre@xxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/power/supply/axp288_fuel_gauge.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
--- a/drivers/power/supply/axp288_fuel_gauge.c
+++ b/drivers/power/supply/axp288_fuel_gauge.c
@@ -169,8 +169,10 @@ static int fuel_gauge_reg_readb(struct a
break;
}
- if (ret < 0)
+ if (ret < 0) {
dev_err(&info->pdev->dev, "axp288 reg read err:%d\n", ret);
+ return ret;
+ }
return val;
}