thermal: disable polling if passive_delay and polling_delay are both unset
authorFrans Pop <elendil@planet.nl>
Mon, 26 Oct 2009 07:39:04 +0000 (08:39 +0100)
committerLen Brown <len.brown@intel.com>
Thu, 5 Nov 2009 23:19:01 +0000 (18:19 -0500)
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>
Acked-by: Matthew Garrett <mjg@redhat.com>
Acked-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>
drivers/thermal/thermal_sys.c

index 663c2fdba775dc3ed6add2d6e162e4d55fdcd169..3bc72ea57e094d5ad5a3bdae349191051331394a 100644 (file)
@@ -1019,6 +1019,8 @@ 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);