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thermal: disable polling if passive_delay and polling_delay are both unset

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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>
This commit is contained in:
Frans Pop 2009-10-26 08:39:04 +01:00 committed by Len Brown
parent e4143b0324
commit 3767cb54ac
1 changed files with 2 additions and 0 deletions
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drivers/thermal/thermal_sys.c
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@ -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);