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thermal/core: Add dedicated release callback for thermal zones

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The thermal class release callback currently handles thermal zone
cleanup by checking the device name prefix.

Move the thermal zone cleanup to a dedicated struct device release
callback.  This avoids relying on device names to select the release
path and keeps the thermal zone lifetime handling local to the thermal
zone object.

Signed-off-by: Daniel Lezcano <daniel.lezcano@oss.qualcomm.com>
Reviewed-by: Lukasz Luba <lukasz.luba@arm.com>
Link: https://patch.msgid.link/20260508180511.1306659-3-daniel.lezcano@oss.qualcomm.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Daniel Lezcano
2026-05-08 20:05:09 +02:00
committed by Rafael J. Wysocki
parent 11568924a9
commit dc04e81fa2
1 changed files with 12 additions and 16 deletions
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28
drivers/thermal/thermal_core.c
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@@ -889,24 +889,8 @@ static void thermal_unbind_cdev_from_trip(struct thermal_zone_device *tz,
kfree(pos);
}
static void thermal_release(struct device *dev)
{
struct thermal_zone_device *tz;
if (!strncmp(dev_name(dev), "thermal_zone",
sizeof("thermal_zone") - 1)) {
tz = to_thermal_zone(dev);
thermal_zone_destroy_device_groups(tz);
thermal_set_governor(tz, NULL);
ida_destroy(&tz->ida);
mutex_destroy(&tz->lock);
complete(&tz->removal);
}
}
static const struct class thermal_class = {
.name = "thermal",
.dev_release = thermal_release,
};
static bool thermal_class_unavailable __ro_after_init = true;
@@ -1413,6 +1397,17 @@ static void thermal_zone_init_complete(struct thermal_zone_device *tz)
__thermal_zone_device_update(tz, THERMAL_EVENT_UNSPECIFIED);
}
static void thermal_zone_device_release(struct device *dev)
{
struct thermal_zone_device *tz = to_thermal_zone(dev);
thermal_zone_destroy_device_groups(tz);
thermal_set_governor(tz, NULL);
ida_destroy(&tz->ida);
mutex_destroy(&tz->lock);
complete(&tz->removal);
}
/**
* thermal_zone_device_register_with_trips() - register a new thermal zone device
* @type: the thermal zone device type
@@ -1520,6 +1515,7 @@ thermal_zone_device_register_with_trips(const char *type,
tz->ops.critical = thermal_zone_device_critical;
tz->device.class = &thermal_class;
tz->device.release = thermal_zone_device_release;
tz->devdata = devdata;
tz->num_trips = num_trips;
for_each_trip_desc(tz, td) {