[PATCH v2] sched: Fixes typos in comments

[Atul Kumar Pant <atulpant.linux@gmail.com>]

Fixes spelling errors in the comments.

Signed-off-by: Atul Kumar Pant <atulpant.linux@gmail.com>
---

changes since v1:
  added changelog
  removed an incorrect fix

 kernel/sched/core.c     | 2 +-
 kernel/sched/cputime.c  | 2 +-
 kernel/sched/wait_bit.c | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 3e5a6bf58..451e30249 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -8998,7 +8998,7 @@ void sched_release_group(struct task_group *tg)
 	 * that tg_unthrottle_up() won't add decayed cfs_rq's to it.
 	 *
 	 * We therefore defer calling unregister_fair_sched_group() to
-	 * sched_unregister_group() which is guarantied to get called only after the
+	 * sched_unregister_group() which is guaranteed to get called only after the
 	 * current RCU grace period has expired.
 	 */
 	spin_lock_irqsave(&task_group_lock, flags);
diff --git a/kernel/sched/cputime.c b/kernel/sched/cputime.c
index 0bed0fa1a..f8ada8239 100644
--- a/kernel/sched/cputime.c
+++ b/kernel/sched/cputime.c
@@ -584,7 +584,7 @@ void cputime_adjust(struct task_cputime *curr, struct prev_cputime *prev,
 	stime = mul_u64_u64_div_u64(stime, rtime, stime + utime);
 	/*
 	 * Because mul_u64_u64_div_u64() can approximate on some
-	 * achitectures; enforce the constraint that: a*b/(b+c) <= a.
+	 * architectures; enforce the constraint that: a*b/(b+c) <= a.
 	 */
 	if (unlikely(stime > rtime))
 		stime = rtime;
diff --git a/kernel/sched/wait_bit.c b/kernel/sched/wait_bit.c
index b410b61ce..4197f5ed2 100644
--- a/kernel/sched/wait_bit.c
+++ b/kernel/sched/wait_bit.c
@@ -204,7 +204,7 @@ EXPORT_SYMBOL(init_wait_var_entry);
  * given variable to change.  wait_var_event() can be waiting for an
  * arbitrary condition to be true and associates that condition with an
  * address.  Calling wake_up_var() suggests that the condition has been
- * made true, but does not strictly require the condtion to use the
+ * made true, but does not strictly require the condition to use the
  * address given.
  *
  * The wake-up is sent to tasks in a waitqueue selected by hash from a
-- 
2.34.1