spelling fixes: arch/frv/

Spelling fixes in arch/frv/.
Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
Acked-By: David Howells <dhowells@redhat.com>
Signed-off-by: Adrian Bunk <bunk@kernel.org>

arch/frv/kernel/irq.c

@@ -134,7 +134,7 @@ static struct irq_chip frv_cpu_pic = {
 };
 
 /*
- * handles all normal device IRQ's
+ * handles all normal device IRQs
  * - registers are referred to by the __frame variable (GR28)
  * - IRQ distribution is complicated in this arch because of the many PICs, the
  *   way they work and the way they cascade

arch/frv/kernel/semaphore.c

@@ -139,7 +139,7 @@ void __up(struct semaphore *sem)
 	waiter = list_entry(sem->wait_list.next, struct sem_waiter, list);
 
 	/* We must be careful not to touch 'waiter' after we set ->task = NULL.
-	 * It is an allocated on the waiter's stack and may become invalid at
+	 * It is allocated on the waiter's stack and may become invalid at
 	 * any time after that point (due to a wakeup from another source).
 	 */
 	list_del_init(&waiter->list);

arch/frv/kernel/time.c

@@ -66,7 +66,7 @@ static irqreturn_t timer_interrupt(int irq, void *dummy)
 	/*
 	 * Here we are in the timer irq handler. We just have irqs locally
 	 * disabled but we don't know if the timer_bh is running on the other
-	 * CPU. We need to avoid to SMP race with it. NOTE: we don' t need
+	 * CPU. We need to avoid to SMP race with it. NOTE: we don't need
 	 * the irq version of write_lock because as just said we have irq
 	 * locally disabled. -arca
 	 */
@@ -126,7 +126,7 @@ void time_init(void)
 
 	/* FIX by dqg : Set to zero for platforms that don't have tod */
 	/* without this time is undefined and can overflow time_t, causing  */
-	/* very stange errors */
+	/* very strange errors */
 	year = 1980;
 	mon = day = 1;
 	hour = min = sec = 0;