diff options
| -rw-r--r-- | drivers/base/power/qos.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/base/power/qos.c b/drivers/base/power/qos.c index 31d3f4842b9b..081db2d25daa 100644 --- a/drivers/base/power/qos.c +++ b/drivers/base/power/qos.c @@ -277,6 +277,9 @@ void dev_pm_qos_constraints_destroy(struct device *dev) * -EINVAL in case of wrong parameters, -ENOMEM if there's not enough memory * to allocate for data structures, -ENODEV if the device has just been removed * from the system. + * + * Callers should ensure that the target device is not RPM_SUSPENDED before + * using this function for requests of type DEV_PM_QOS_FLAGS. */ int dev_pm_qos_add_request(struct device *dev, struct dev_pm_qos_request *req, enum dev_pm_qos_req_type type, s32 value) @@ -367,6 +370,9 @@ static int __dev_pm_qos_update_request(struct dev_pm_qos_request *req, * 0 if the aggregated constraint value has not changed, * -EINVAL in case of wrong parameters, -ENODEV if the device has been * removed from the system + * + * Callers should ensure that the target device is not RPM_SUSPENDED before + * using this function for requests of type DEV_PM_QOS_FLAGS. */ int dev_pm_qos_update_request(struct dev_pm_qos_request *req, s32 new_value) { @@ -398,6 +404,9 @@ EXPORT_SYMBOL_GPL(dev_pm_qos_update_request); * 0 if the aggregated constraint value has not changed, * -EINVAL in case of wrong parameters, -ENODEV if the device has been * removed from the system + * + * Callers should ensure that the target device is not RPM_SUSPENDED before + * using this function for requests of type DEV_PM_QOS_FLAGS. */ int dev_pm_qos_remove_request(struct dev_pm_qos_request *req) { |