arch/parisc/: Spelling fixes

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 395bbce..e10d25d 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -305,7 +305,7 @@
 	/* save the current process space and pgd */
 	unsigned long space = mfsp(3), pgd = mfctl(25);
 
-	/* we don't mind taking interrups since they may not
+	/* we don't mind taking interrupts since they may not
 	 * do anything with user space, but we can't
 	 * be preempted here */
 	preempt_disable();