diff options
| author | Ingo Molnar <mingo@elte.hu> | 2008-07-06 14:23:39 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-07-06 14:23:39 +0200 |
| commit | 68083e05d72d94f347293d8cc0067050ba904bfa (patch) | |
| tree | 842e71365bd90866be7add181661a4039d891564 /drivers/acpi/thermal.c | |
| parent | 7baac8b91f9871ba8cb09af84de4ae1d86d07812 (diff) | |
| parent | b7279469d66b55119784b8b9529c99c1955fe747 (diff) | |
Merge commit 'v2.6.26-rc9' into cpus4096
Diffstat (limited to 'drivers/acpi/thermal.c')
| -rw-r--r-- | drivers/acpi/thermal.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c index 504385b1f21..84c795fb9b1 100644 --- a/drivers/acpi/thermal.c +++ b/drivers/acpi/thermal.c @@ -364,10 +364,17 @@ static int acpi_thermal_trips_update(struct acpi_thermal *tz, int flag) if (flag & ACPI_TRIPS_CRITICAL) { status = acpi_evaluate_integer(tz->device->handle, "_CRT", NULL, &tz->trips.critical.temperature); - if (ACPI_FAILURE(status)) { + /* + * Treat freezing temperatures as invalid as well; some + * BIOSes return really low values and cause reboots at startup. + * Below zero (Celcius) values clearly aren't right for sure.. + * ... so lets discard those as invalid. + */ + if (ACPI_FAILURE(status) || + tz->trips.critical.temperature <= 2732) { tz->trips.critical.flags.valid = 0; ACPI_EXCEPTION((AE_INFO, status, - "No critical threshold")); + "No or invalid critical threshold")); return -ENODEV; } else { tz->trips.critical.flags.valid = 1; |