treewide: Fix typo in xml/driver-api/basics.xml

This patch fix spelling typos found in
Documentation/output/xml/driver-api/basics.xml.
It is because the xml file was generated from comments in source,
so I had to fix the comments.
Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

include/linux/sched.h

@@ -186,7 +186,7 @@ extern long io_schedule_timeout(long timeout);
 extern void io_schedule(void);
 
 /**
- * struct prev_cputime - snaphsot of system and user cputime
+ * struct prev_cputime - snapshot of system and user cputime
  * @utime: time spent in user mode
  * @stime: time spent in system mode
  * @lock: protects the above two fields

kernel/sched/fair.c

@@ -7597,7 +7597,7 @@ static inline void update_sd_lb_stats(struct lb_env *env, struct sd_lb_stats *sd
 
 /**
  * check_asym_packing - Check to see if the group is packed into the
- *			sched doman.
+ *			sched domain.
  *
  * This is primarily intended to used at the sibling level.  Some
  * cores like POWER7 prefer to use lower numbered SMT threads.  In the

kernel/time/hrtimer.c

@@ -987,7 +987,7 @@ EXPORT_SYMBOL_GPL(hrtimer_start_range_ns);
  * Returns:
  *  0 when the timer was not active
  *  1 when the timer was active
- * -1 when the timer is currently excuting the callback function and
+ * -1 when the timer is currently executing the callback function and
  *    cannot be stopped
  */
 int hrtimer_try_to_cancel(struct hrtimer *timer)

kernel/time/timer.c

@@ -1120,7 +1120,7 @@ void add_timer_on(struct timer_list *timer, int cpu)
 EXPORT_SYMBOL_GPL(add_timer_on);
 
 /**
- * del_timer - deactive a timer.
+ * del_timer - deactivate a timer.
  * @timer: the timer to be deactivated
  *
  * del_timer() deactivates a timer - this works on both active and inactive