From 75cf4f5aa903604e1bd7bec2c0988d643c6fb946 Mon Sep 17 00:00:00 2001 From: Kangjie Lu Date: Thu, 14 Mar 2019 01:02:47 -0500 Subject: power: charger-manager: fix a potential NULL pointer dereference In case create_freezable_workqueue fails, the fix return -ENOMEM to avoid a potential NULL pointer dereference. Signed-off-by: Kangjie Lu Signed-off-by: Sebastian Reichel --- drivers/power/supply/charger-manager.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers/power/supply/charger-manager.c') diff --git a/drivers/power/supply/charger-manager.c b/drivers/power/supply/charger-manager.c index 2e8db5e6de0b..a6900aa0d2ed 100644 --- a/drivers/power/supply/charger-manager.c +++ b/drivers/power/supply/charger-manager.c @@ -1987,6 +1987,9 @@ static struct platform_driver charger_manager_driver = { static int __init charger_manager_init(void) { cm_wq = create_freezable_workqueue("charger_manager"); + if (unlikely(!cm_wq)) + return -ENOMEM; + INIT_DELAYED_WORK(&cm_monitor_work, cm_monitor_poller); return platform_driver_register(&charger_manager_driver); -- cgit v1.2.3-55-g7522