Fix misspellings of "system", "controller", "interrupt" and "necessary".

Fix the various misspellings of "system", controller", "interrupt" and
"[un]necessary".

Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Signed-off-by: Adrian Bunk <bunk@kernel.org>

3 files changed, 4 insertions, 4 deletions

diff --git a/kernel/hrtimer.c b/kernel/hrtimer.c
index b2b2c2b0a49b..dabfefb4ffdf 100644
--- a/kernel/hrtimer.c
+++ b/kernel/hrtimer.c
@@ -412,7 +412,7 @@ static int hrtimer_reprogram(struct hrtimer *timer,
         /*
          * When the callback is running, we do not reprogram the clock event
          * device. The timer callback is either running on a different CPU or
-         * the callback is executed in the hrtimer_interupt context. The
+         * the callback is executed in the hrtimer_interrupt context. The
          * reprogramming is handled either by the softirq, which called the
          * callback or at the end of the hrtimer_interrupt.
          */
diff --git a/kernel/sched.c b/kernel/sched.c
index afe76ec2e7fe..a54bd9dfbedb 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -5146,7 +5146,7 @@ static int __migrate_task_irq(struct task_struct *p, int src_cpu, int dest_cpu)
 }
 
 /*
- * Figure out where task on dead CPU should go, use force if neccessary.
+ * Figure out where task on dead CPU should go, use force if necessary.
  * NOTE: interrupts should be disabled by the caller
  */
 static void move_task_off_dead_cpu(int dead_cpu, struct task_struct *p)
@@ -5525,7 +5525,7 @@ migration_call(struct notifier_block *nfb, unsigned long action, void *hcpu)
 
         case CPU_ONLINE:
         case CPU_ONLINE_FROZEN:
-                /* Strictly unneccessary, as first user will wake it. */
+                /* Strictly unnecessary, as first user will wake it. */
                 wake_up_process(cpu_rq(cpu)->migration_thread);
                 break;
 
diff --git a/kernel/taskstats.c b/kernel/taskstats.c
index 9f360f68aad6..354e74bc17c1 100644
--- a/kernel/taskstats.c
+++ b/kernel/taskstats.c
@@ -263,7 +263,7 @@ out:
 
         stats->version = TASKSTATS_VERSION;
         /*
-         * Accounting subsytems can also add calls here to modify
+         * Accounting subsystems can also add calls here to modify
          * fields of taskstats.
          */
         return rc;