ACPI: thermal: Mark uninitialized active trips as invalid

From: Rafael J. Wysocki <[email protected]>

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.

---

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
===================================================================
@@ -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;
 }