From: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx> After removing the valid flag from struct acpi_thermal_trip, the trip temperature value is used in validity checks, so it must be THERMAL_TEMP_INVALID for the active trip entries in struct acpi_thermal_trips that are not going to be used (because the corresponding objects are not present in the ACPI tables, for example). Accordingly, modify acpi_thermal_get_trip_points() to set the temperature value to THERMAL_TEMP_INVALID for trip point entries skipped by it after acpi_thermal_init_trip() has returned 'false' for an active trip. Fixes: 058f5e407deb ("ACPI: thermal: Drop valid flag from struct acpi_thermal_trip") Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx> --- Commit 058f5e407deb mentioned above is present in the linux-next branch of linux-pm.git and acpi_thermal_init_trip() is introduced by https://patchwork.kernel.org/project/linux-pm/patch/1785516.VLH7GnMWUR@kreacher/ --- drivers/acpi/thermal.c | 3 +++ 1 file changed, 3 insertions(+) Index: linux-pm/drivers/acpi/thermal.c =================================================================== --- linux-pm.orig/drivers/acpi/thermal.c +++ linux-pm/drivers/acpi/thermal.c @@ -480,6 +480,9 @@ static int acpi_thermal_get_trip_points( } + while (++i < ACPI_THERMAL_MAX_ACTIVE) + tz->trips.active[i].trip.temperature = THERMAL_TEMP_INVALID; + return count; }