From a72fe8eb5555d6e80e252edeb4490f46675a0ea5 Mon Sep 17 00:00:00 2001 From: Zhang Qilong Date: Mon, 21 Nov 2022 09:18:31 +0800 Subject: [PATCH] power: supply: z2_battery: Fix possible memleak in z2_batt_probe() [ Upstream commit 955bee204f3dd307642c101b75e370662987e735 ] If devm_gpiod_get_optional() returns error, the charger should be freed before z2_batt_probe returns according to the context. We fix it by just gotoing to 'err' branch. Fixes: a3b4388ea19b ("power: supply: z2_battery: Convert to GPIO descriptors") Signed-off-by: Zhang Qilong Reviewed-by: Linus Walleij Signed-off-by: Sebastian Reichel Signed-off-by: Sasha Levin --- drivers/power/supply/z2_battery.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/power/supply/z2_battery.c b/drivers/power/supply/z2_battery.c index 7ed4e4bb26ec..fd33cdf9cf12 100644 --- a/drivers/power/supply/z2_battery.c +++ b/drivers/power/supply/z2_battery.c @@ -206,10 +206,12 @@ static int z2_batt_probe(struct i2c_client *client, charger->charge_gpiod = devm_gpiod_get_optional(&client->dev, NULL, GPIOD_IN); - if (IS_ERR(charger->charge_gpiod)) - return dev_err_probe(&client->dev, + if (IS_ERR(charger->charge_gpiod)) { + ret = dev_err_probe(&client->dev, PTR_ERR(charger->charge_gpiod), "failed to get charge GPIO\n"); + goto err; + } if (charger->charge_gpiod) { gpiod_set_consumer_name(charger->charge_gpiod, "BATT CHRG");