Warn user about a BIOS bug in recent asus boards
Do copy passive devices only if they are valid.
Signed-off-by: Thomas Renninger <trenn@xxxxxxx>
Signed-off-by: Zhang Rui <rui.zhang@xxxxxxxxx>
---
drivers/acpi/thermal.c | 20 +++++++++++---------
1 file changed, 11 insertions(+), 9 deletions(-)
Index: linux-2.6.24/drivers/acpi/thermal.c
===================================================================
--- linux-2.6.24.orig/drivers/acpi/thermal.c
+++ linux-2.6.24/drivers/acpi/thermal.c
@@ -440,16 +440,18 @@ static int acpi_thermal_trips_update(str
memset(&devices, 0, sizeof(struct acpi_handle_list));
status = acpi_evaluate_reference(tz->device->handle, "_PSL",
NULL, &devices);
- if (ACPI_FAILURE(status))
- tz->trips.passive.flags.valid = 0;
- else
+ if (ACPI_SUCCESS(status)) {
tz->trips.passive.flags.valid = 1;
-
- if (memcmp(&tz->trips.passive.devices, &devices,
- sizeof(struct acpi_handle_list))) {
- memcpy(&tz->trips.passive.devices, &devices,
- sizeof(struct acpi_handle_list));
- ACPI_THERMAL_TRIPS_EXCEPTION(flag, "device");
+ if (memcmp(&tz->trips.passive.devices, &devices,
+ sizeof(struct acpi_handle_list))) {
+ memcpy(&tz->trips.passive.devices, &devices,
+ sizeof(struct acpi_handle_list));
+ ACPI_THERMAL_TRIPS_EXCEPTION(flag, "device");
+ }
+ } else {
+ tz->trips.passive.flags.valid = 0;
+ ACPI_EXCEPTION((AE_INFO, status, "Invalid passiv trip"
+ " point\n"));
}
}
if ((flag & ACPI_TRIPS_PASSIVE) || (flag & ACPI_TRIPS_DEVICES)) {
--
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