thermal: disable polling if passive_delay and polling_delay are both …

…unset 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 <[email protected]> Acked-by: Matthew Garrett <[email protected]> Acked-by: Zhang Rui <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Len Brown <[email protected]>
ambv · Nov 5, 2009 · 3767cb5 · 3767cb5
1 parent e4143b0
commit 3767cb5
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/drivers/thermal/thermal_sys.c b/drivers/thermal/thermal_sys.c
@@ -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);