notifier: repair slips in kernel-doc comments

Invoking ./scripts/kernel-doc -none kernel/notifier.c warns:

  kernel/notifier.c:71: warning: Excess function parameter 'returns' description in 'notifier_call_chain'
  kernel/notifier.c:119: warning: Function parameter or member 'v' not described in 'notifier_call_chain_robust'

These two warning are easy to fix, as they are just due to some minor slips
that makes the comment not follow kernel-doc's syntactic expectation.

Fix those minor slips in kernel-doc comments for make W=1 happiness.
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

kernel/notifier.c

@@ -62,7 +62,7 @@ static int notifier_chain_unregister(struct notifier_block **nl,
  *			value of this parameter is -1.
  *	@nr_calls:	Records the number of notifications sent. Don't care
  *			value of this field is NULL.
- *	@returns:	notifier_call_chain returns the value returned by the
+ *	Return:		notifier_call_chain returns the value returned by the
  *			last notifier function called.
  */
 static int notifier_call_chain(struct notifier_block **nl,
@@ -105,13 +105,13 @@ NOKPROBE_SYMBOL(notifier_call_chain);
  * @val_up:	Value passed unmodified to the notifier function
  * @val_down:	Value passed unmodified to the notifier function when recovering
  *              from an error on @val_up
- * @v		Pointer passed unmodified to the notifier function
+ * @v:		Pointer passed unmodified to the notifier function
  *
  * NOTE:	It is important the @nl chain doesn't change between the two
  *		invocations of notifier_call_chain() such that we visit the
  *		exact same notifier callbacks; this rules out any RCU usage.
  *
- * Returns:	the return value of the @val_up call.
+ * Return:	the return value of the @val_up call.
  */
 static int notifier_call_chain_robust(struct notifier_block **nl,
 				     unsigned long val_up, unsigned long val_down,