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>
diff --git a/arch/frv/kernel/semaphore.c b/arch/frv/kernel/semaphore.c
index 8e182ce..7ee3a14 100644
--- a/arch/frv/kernel/semaphore.c
+++ b/arch/frv/kernel/semaphore.c
@@ -139,7 +139,7 @@
 	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);