| Message ID | 1441631969-3272-6-git-send-email-javi.merino@arm.com (mailing list archive) |
|---|---|
| State | Accepted, archived |
| Delegated to: | Zhang Rui |
| Headers | show |
diff --git a/drivers/thermal/power_allocator.c b/drivers/thermal/power_allocator.c index 78d589e7e65f..8a0d801ed29b 100644 --- a/drivers/thermal/power_allocator.c +++ b/drivers/thermal/power_allocator.c @@ -346,6 +346,11 @@ static int allocate_power(struct thermal_zone_device *tz, } } + if (!num_actors) { + ret = -ENODEV; + goto unlock; + } + /* * We need to allocate five arrays of the same size: * req_power, max_power, granted_power, extra_actor_power and
Don't waste cycles in the power allocator governor's throttle function if there are no cooling devices and exit early. This commit doesn't change any functionality, but should provide better performance for the odd case of a thermal zone with trip points but without cooling devices. Cc: Zhang Rui <rui.zhang@intel.com> Cc: Eduardo Valentin <edubezval@gmail.com> Signed-off-by: Javi Merino <javi.merino@arm.com> --- drivers/thermal/power_allocator.c | 5 +++++ 1 file changed, 5 insertions(+)