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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 <kjlu@umn.edu>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
This commit is contained in:
Kangjie Lu 2019-03-14 01:02:47 -05:00 committed by Sebastian Reichel
parent 077d9951f7
commit 75cf4f5aa9
1 changed files with 3 additions and 0 deletions
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3
drivers/power/supply/charger-manager.c
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@ -1987,6 +1987,9 @@ static struct platform_driver charger_manager_driver = {
static int __init charger_manager_init(void) static int __init charger_manager_init(void)
{ {
cm_wq = create_freezable_workqueue("charger_manager"); cm_wq = create_freezable_workqueue("charger_manager");
if (unlikely(!cm_wq))
return -ENOMEM;
INIT_DELAYED_WORK(&cm_monitor_work, cm_monitor_poller); INIT_DELAYED_WORK(&cm_monitor_work, cm_monitor_poller);
return platform_driver_register(&charger_manager_driver); return platform_driver_register(&charger_manager_driver);