diff --git a/arch/powerpc/sysdev/mpic.c b/arch/powerpc/sysdev/mpic.c
index d46de1f..a5980e6 100644
--- a/arch/powerpc/sysdev/mpic.c
+++ b/arch/powerpc/sysdev/mpic.c
@@ -1109,9 +1109,8 @@ struct mpic * __init mpic_alloc(struct device_node *node,
 			psize /= 4;
 			bits = intvec_top + 1;
 			mapsize = BITS_TO_LONGS(bits) * sizeof(unsigned long);
-			mpic->protected = alloc_bootmem(mapsize);
+			mpic->protected = kzalloc(mapsize, GFP_KERNEL);
 			BUG_ON(mpic->protected == NULL);
-			memset(mpic->protected, 0, mapsize);
 			for (i = 0; i < psize; i++) {
 				if (psrc[i] > intvec_top)
 					continue;