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pm: device: Account state locked in action_run

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Similar what is done in pm_device_state_set, checking if the power
state for a given device in pm_device_action_run is locked.

Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>
This commit is contained in:
Flavio Ceolin 2021-12-15 12:06:34 -08:00 • committed by Anas Nashif
commit 94647d8e67
2 changed files with 5 additions and 0 deletions
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1
include/pm/device.h
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@ -330,6 +330,7 @@ int pm_device_state_get(const struct device *dev,
* @retval -EALREADY If device is already at the requested state. * @retval -EALREADY If device is already at the requested state.
* @retval -EBUSY If device is changing its state. * @retval -EBUSY If device is changing its state.
* @retval -ENOSYS If device does not support PM. * @retval -ENOSYS If device does not support PM.
* @retval -EPERM If device has power state locked.
* @retval Errno Other negative errno on failure. * @retval Errno Other negative errno on failure.
*/ */
int pm_device_action_run(const struct device *dev, int pm_device_action_run(const struct device *dev,

4
subsys/pm/device.c
View file

@ -89,6 +89,10 @@ int pm_device_action_run(const struct device *dev,
return -ENOSYS; return -ENOSYS;
} }
if (pm_device_state_is_locked(dev)) {
return -EPERM;
}
switch (action) { switch (action) {
case PM_DEVICE_ACTION_FORCE_SUSPEND: case PM_DEVICE_ACTION_FORCE_SUSPEND:
__fallthrough; __fallthrough;