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    Subject[PATCH 6/6] thermal: disable polling if passive_delay and polling_delay are both unset
    Date
    Otherwise polling will continue for the thermal zone even when
    it is no longer needed, for example because forced passive cooling
    was disabled.

    Signed-off-by: Frans Pop <elendil@planet.nl>
    Cc: Matthew Garrett <mjg@redhat.com>
    Cc: Zhang Rui <rui.zhang@intel.com>

    diff --git a/drivers/thermal/thermal_sys.c b/drivers/thermal/thermal_sys.c
    index ceda0f1..a59685b 100644
    --- a/drivers/thermal/thermal_sys.c
    +++ b/drivers/thermal/thermal_sys.c
    @@ -1012,6 +1012,8 @@ void thermal_zone_device_update(struct thermal_zone_device *tz)
    thermal_zone_device_set_polling(tz, tz->passive_delay);
    else if (tz->polling_delay)
    thermal_zone_device_set_polling(tz, tz->polling_delay);
    + else
    + thermal_zone_device_set_polling(tz, 0);
    mutex_unlock(&tz->lock);
    }
    EXPORT_SYMBOL(thermal_zone_device_update);

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