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thermal/core: Fix lockdep_assert() warning
authorDaniel Lezcano <daniel.lezcano@linaro.org>
Fri, 12 Aug 2022 13:07:43 +0000 (15:07 +0200)
committerDaniel Lezcano <daniel.lezcano@linaro.org>
Wed, 17 Aug 2022 12:09:39 +0000 (14:09 +0200)
The function thermal_zone_device_is_enabled() must be called with the
thermal zone lock held. In the resume path, it is called without.

As the thermal_zone_device_is_enabled() is also checked in
thermal_zone_device_update(), do the check in resume() function is
pointless, except for saving an extra initialization which does not
hurt if it is done in all the cases.

Fixes: ca48ad71717dd ("thermal/core: Move the mutex inside the thermal_zone_device_update() function")
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reported-by: Marek Szyprowski <m.szyprowski@samsung.com>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
drivers/thermal/thermal_core.c

index 4812170..99c0c19 100644 (file)
@@ -1438,9 +1438,6 @@ static int thermal_pm_notify(struct notifier_block *nb,
        case PM_POST_SUSPEND:
                atomic_set(&in_suspend, 0);
                list_for_each_entry(tz, &thermal_tz_list, node) {
-                       if (!thermal_zone_device_is_enabled(tz))
-                               continue;
-
                        thermal_zone_device_init(tz);
                        thermal_zone_device_update(tz,
                                                   THERMAL_EVENT_UNSPECIFIED);