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HACK: lib/kobject_uevent.c: ignore thermal uevent when suspend

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Android healthd try to listen power_supply subsystem uevent,
but which will block system from suspend on big.LITTLE system
because thermal_cooling_device_unregister will called when
cpufreq_exit. So ignore this uevent when suspend.

Change-Id: I35948498916560d5ec75fe561c9e9d588663ad22
Signed-off-by: Huang, Tao <huangtao@rock-chips.com>
This commit is contained in:
Huang, Tao 2016-08-26 19:19:04 +08:00
commit 58f443ef96
1 changed files with 15 additions and 0 deletions
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15
lib/kobject_uevent.c
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@ -223,6 +223,21 @@ int kobject_uevent_env(struct kobject *kobj, enum kobject_action action,
return 0;
}
if (IS_ENABLED(CONFIG_ARCH_ROCKCHIP) &&
IS_ENABLED(CONFIG_FREEZER) &&
IS_ENABLED(CONFIG_ANDROID)) {
/*
* Android healthd try to listen power_supply subsystem uevent,
* but which will block system from suspend on big.LITTLE system
* because thermal_cooling_device_unregister will called when
* cpufreq_exit. So ignore this uevent when suspend.
*/
extern bool pm_freezing;
if (pm_freezing && !strcmp(subsystem, "thermal"))
return 0;
}
/* environment buffer */
env = kzalloc(sizeof(struct kobj_uevent_env), GFP_KERNEL);
if (!env)