[PATCH for 6.13 v1 4/8] thermal: core: Initialize thermal zones before registerimg them

From: Rafael J. Wysocki
Date: Tue Sep 10 2024 - 05:39:34 EST


From: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>

Since user space can start interacting with a new thermal zone as soon
as device_register() called by thermal_zone_device_register_with_trips()
returns, it is better to initialize the thermal zone before calling
device_register() on it.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
---
drivers/thermal/thermal_core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

Index: linux-pm/drivers/thermal/thermal_core.c
===================================================================
--- linux-pm.orig/drivers/thermal/thermal_core.c
+++ linux-pm/drivers/thermal/thermal_core.c
@@ -1469,6 +1469,7 @@ thermal_zone_device_register_with_trips(
thermal_zone_destroy_device_groups(tz);
goto remove_id;
}
+ thermal_zone_device_init(tz);
result = device_register(&tz->device);
if (result)
goto release_device;
@@ -1507,7 +1508,6 @@ thermal_zone_device_register_with_trips(

mutex_unlock(&thermal_list_lock);

- thermal_zone_device_init(tz);
/* Update the new thermal zone and mark it as already updated. */
if (atomic_cmpxchg(&tz->need_update, 1, 0))
thermal_zone_device_update(tz, THERMAL_EVENT_UNSPECIFIED);