- else if (trend < 0)
- for (i=0; i<passive->devices.count; i++)
- acpi_processor_set_thermal_limit(
- passive->devices.handles[i],
- ACPI_PROCESSOR_LIMIT_DECREMENT);
+ else if (trend < 0) {
+ for (i = 0; i < passive->devices.count; i++)
+ /*
+ * assume that we are on highest
+ * freq/lowest thrott and can leave
+ * passive mode, even in error case
+ */
+ if (!acpi_processor_set_thermal_limit
+ (passive->devices.handles[i],
+ ACPI_PROCESSOR_LIMIT_DECREMENT))
+ result = 0;
+ /*
+ * Leave cooling mode, even if the temp might
+ * higher than trip point This is because some
+ * machines might have long thermal polling
+ * frequencies (tsp) defined. We will fall back
+ * into passive mode in next cycle (probably quicker)
+ */
+ if (result) {
+ passive->flags.enabled = 0;
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "Disabling passive cooling, still above threshold,"
+ " but we are cooling down\n"));
+ }
+ }
+ return;