PM / devfreq: Fix multiple kernel-doc warnings

Fix kernel-doc warnings in devfreq files.
Also fix a typo.
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>

drivers/devfreq/devfreq-event.c

@@ -346,9 +346,9 @@ EXPORT_SYMBOL_GPL(devfreq_event_add_edev);
 
 /**
  * devfreq_event_remove_edev() - Remove the devfreq-event device registered.
- * @dev		: the devfreq-event device
+ * @edev	: the devfreq-event device
  *
- * Note that this function remove the registered devfreq-event device.
+ * Note that this function removes the registered devfreq-event device.
  */
 int devfreq_event_remove_edev(struct devfreq_event_dev *edev)
 {

drivers/devfreq/devfreq.c

@@ -1852,7 +1852,7 @@ static void devm_devfreq_notifier_release(struct device *dev, void *res)
 
 /**
  * devm_devfreq_register_notifier()
-	- Resource-managed devfreq_register_notifier()
+ *	- Resource-managed devfreq_register_notifier()
  * @dev:	The devfreq user device. (parent of devfreq)
  * @devfreq:	The devfreq object.
  * @nb:		The notifier block to be unregistered.
@@ -1888,7 +1888,7 @@ EXPORT_SYMBOL(devm_devfreq_register_notifier);
 
 /**
  * devm_devfreq_unregister_notifier()
-	- Resource-managed devfreq_unregister_notifier()
+ *	- Resource-managed devfreq_unregister_notifier()
  * @dev:	The devfreq user device. (parent of devfreq)
  * @devfreq:	The devfreq object.
  * @nb:		The notifier block to be unregistered.

include/linux/devfreq.h

@@ -136,6 +136,7 @@ struct devfreq_stats {
  *		devfreq.nb to the corresponding register notifier call chain.
  * @work:	delayed work for load monitoring.
  * @previous_freq:	previously configured frequency value.
+ * @last_status:	devfreq user device info, performance statistics
  * @data:	Private data of the governor. The devfreq framework does not
  *		touch this.
  * @user_min_freq_req:	PM QoS minimum frequency request from user (via sysfs)
@@ -151,7 +152,7 @@ struct devfreq_stats {
  * @nb_min:		Notifier block for DEV_PM_QOS_MIN_FREQUENCY
  * @nb_max:		Notifier block for DEV_PM_QOS_MAX_FREQUENCY
  *
- * This structure stores the devfreq information for a give device.
+ * This structure stores the devfreq information for a given device.
  *
  * Note that when a governor accesses entries in struct devfreq in its
  * functions except for the context of callbacks defined in struct