PM / QoS: Fix writing 'auto' to pm_qos_latency_tolerance_us

If it was already 'auto', then writing 'auto' again would
incorrectly fail.

Signed-off-by: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Andrew Lutomirski 2016-11-29 17:11:51 -08:00 committed by Rafael J. Wysocki
parent ee061da8d9
commit 80a6f7c79b

View File

@ -856,7 +856,10 @@ int dev_pm_qos_update_user_latency_tolerance(struct device *dev, s32 val)
struct dev_pm_qos_request *req; struct dev_pm_qos_request *req;
if (val < 0) { if (val < 0) {
ret = -EINVAL; if (val == PM_QOS_LATENCY_TOLERANCE_NO_CONSTRAINT)
ret = 0;
else
ret = -EINVAL;
goto out; goto out;
} }
req = kzalloc(sizeof(*req), GFP_KERNEL); req = kzalloc(sizeof(*req), GFP_KERNEL);