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ACPI: update thermal temperature

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Fix the problem that thermal_get_temp returns the cached value,
which causes the temperature in generic thermal never updates.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Acked-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Zhang, Rui
2008-04-10 16:20:23 +08:00
committed by Len Brown
parent 9030062f3d
commit 76ecb4f2d7
1 changed files with 5 additions and 0 deletions
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5
drivers/acpi/thermal.c
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@@ -884,10 +884,15 @@ static void acpi_thermal_check(void *data)
static int thermal_get_temp(struct thermal_zone_device *thermal, char *buf) static int thermal_get_temp(struct thermal_zone_device *thermal, char *buf)
{ {
struct acpi_thermal *tz = thermal->devdata; struct acpi_thermal *tz = thermal->devdata;
int result;
if (!tz) if (!tz)
return -EINVAL; return -EINVAL;
result = acpi_thermal_get_temperature(tz);
if (result)
return result;
return sprintf(buf, "%ld\n", KELVIN_TO_MILLICELSIUS(tz->temperature)); return sprintf(buf, "%ld\n", KELVIN_TO_MILLICELSIUS(tz->temperature));
} }