[PATCH 5.15 518/731] power: supply: z2_battery: Fix possible memleak in z2_batt_probe()

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From: Zhang Qilong <zhangqilong3@xxxxxxxxxx>

[ 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 <zhangqilong3@xxxxxxxxxx>
Reviewed-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
Signed-off-by: Sebastian Reichel <sebastian.reichel@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 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");
-- 
2.35.1






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