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| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2024-10-04 21:26:12 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2024-10-22 12:07:33 +0200 |
| commit | 1dae3e70b473adc32f81ca1be926440f9b1de9dc (patch) | |
| tree | 248870db6d3639ee0c130a3b981ddd1f744799bf /drivers/thermal | |
| parent | thermal: core: Consolidate thermal zone locking during initialization (diff) | |
| download | linux-1dae3e70b473adc32f81ca1be926440f9b1de9dc.tar.xz linux-1dae3e70b473adc32f81ca1be926440f9b1de9dc.zip | |
thermal: core: Mark thermal zones as exiting before unregistration
In analogy with a previous change in the thermal zone registration code
path, to ensure that __thermal_zone_device_update() will return early
for thermal zones that are going away, introduce a thermal zone state
flag representing the "exit" state and set it while deleting the thermal
zone from thermal_tz_list.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://patch.msgid.link/4394176.ejJDZkT8p0@rjwysocki.net
Reviewed-by: Lukasz Luba <lukasz.luba@arm.com>
Diffstat (limited to 'drivers/thermal')
| -rw-r--r-- | drivers/thermal/thermal_core.c | 3 | ||||
| -rw-r--r-- | drivers/thermal/thermal_core.h | 1 |
2 files changed, 4 insertions, 0 deletions
diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c index 5ae20a740a50..841d072bbe93 100644 --- a/drivers/thermal/thermal_core.c +++ b/drivers/thermal/thermal_core.c @@ -1621,7 +1621,10 @@ void thermal_zone_device_unregister(struct thermal_zone_device *tz) } mutex_lock(&tz->lock); + + tz->state |= TZ_STATE_FLAG_EXIT; list_del(&tz->node); + mutex_unlock(&tz->lock); /* Unbind all cdevs associated with 'this' thermal zone */ diff --git a/drivers/thermal/thermal_core.h b/drivers/thermal/thermal_core.h index 95d920e8403a..f8d2e85d2408 100644 --- a/drivers/thermal/thermal_core.h +++ b/drivers/thermal/thermal_core.h @@ -65,6 +65,7 @@ struct thermal_governor { #define TZ_STATE_FLAG_SUSPENDED BIT(0) #define TZ_STATE_FLAG_RESUMING BIT(1) #define TZ_STATE_FLAG_INIT BIT(2) +#define TZ_STATE_FLAG_EXIT BIT(3) #define TZ_STATE_READY 0 |