[patch 10/12] thermal: disable polling if passive_delay and polling_delay are both unset

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From: Frans Pop <elendil@xxxxxxxxx>

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@xxxxxxxxx>
Acked-by: Matthew Garrett <mjg@xxxxxxxxxx>
Cc: Zhang Rui <rui.zhang@xxxxxxxxx>
Cc: Len Brown <lenb@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---

 drivers/thermal/thermal_sys.c |    2 ++
 1 file changed, 2 insertions(+)

diff -puN drivers/thermal/thermal_sys.c~thermal-disable-polling-if-passive_delay-and-polling_delay-are-both-unset drivers/thermal/thermal_sys.c
--- a/drivers/thermal/thermal_sys.c~thermal-disable-polling-if-passive_delay-and-polling_delay-are-both-unset
+++ a/drivers/thermal/thermal_sys.c
@@ -1019,6 +1019,8 @@ void thermal_zone_device_update(struct t
 		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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