diff options
| author | Paul Mackerras <paulus@samba.org> | 2008-06-16 14:53:25 +1000 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2008-06-16 14:53:25 +1000 |
| commit | a9653cf540d407fb75deb3db65a1be6c81d53ee0 (patch) | |
| tree | 075fb79746f1d74443c9a9062e73c26a6266b05c /drivers/acpi/thermal.c | |
| parent | e80ac32767d0f781ac195c472d500a7451d3729a (diff) | |
| parent | 066519068ad2fbe98c7f45552b1f592903a9c8c8 (diff) | |
Merge branch 'linux-2.6' into merge
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; |