diff --git a/arch/microblaze/mm/init.c b/arch/microblaze/mm/init.c
index 31ec053c1dd6922db9b59c71312b2ea6cf89504b..6ef5088a8d2af2760e9a4deab47dd3854fde526d 100644
--- a/arch/microblaze/mm/init.c
+++ b/arch/microblaze/mm/init.c
@@ -44,16 +44,15 @@ static void __init paging_init(void)
 	int i;
 	unsigned long zones_size[MAX_NR_ZONES];
 
+	/* Clean every zones */
+	memset(zones_size, 0, sizeof(zones_size));
+
 	/*
 	 * old: we can DMA to/from any address.put all page into ZONE_DMA
 	 * We use only ZONE_NORMAL
 	 */
 	zones_size[ZONE_NORMAL] = max_mapnr;
 
-	/* every other zones are empty */
-	for (i = 1; i < MAX_NR_ZONES; i++)
-		zones_size[i] = 0;
-
 	free_area_init(zones_size);
 }