[PATCH 5.15 520/731] power: supply: ab8500: Fix error handling in ab8500_charger_init()

Greg Kroah-Hartman
2022-12-28T15:36:07Z

From: Yuan Can <yuancan@huawei.com>

[ Upstream commit c4d33381b134da188ccd1084aef21e2b8c3c422e ]

The ab8500_charger_init() returns the platform_driver_register() directly
without checking its return value, if platform_driver_register() failed,
all ab8500_charger_component_drivers are not unregistered.

Fix by unregister ab8500_charger_component_drivers when
platform_driver_register() failed.

Fixes: 1c1f13a006ed ("power: supply: ab8500: Move to componentized binding")
Signed-off-by: Yuan Can <yuancan@huawei.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/power/supply/ab8500_charger.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/power/supply/ab8500_charger.c b/drivers/power/supply/ab8500_charger.c
index 15eadaf46f14..a4f766fc7c9d 100644
--- a/drivers/power/supply/ab8500_charger.c
+++ b/drivers/power/supply/ab8500_charger.c
@@ -3726,7 +3726,14 @@ static int __init ab8500_charger_init(void)
if (ret)
return ret;

- return platform_driver_register(&ab8500_charger_driver);
+ ret = platform_driver_register(&ab8500_charger_driver);
+ if (ret) {
+ platform_unregister_drivers(ab8500_charger_component_drivers,
+ ARRAY_SIZE(ab8500_charger_component_drivers));
+ return ret;
+ }
+
+ return 0;
}

static void __exit ab8500_charger_exit(void)
--
2.35.1