2 files changed, 2 insertions, 0 deletions

diff --git a/arch/ia64/mm/contig.c b/arch/ia64/mm/contig.c
index daf977ff2920..82deaa3a7c48 100644
--- a/arch/ia64/mm/contig.c
+++ b/arch/ia64/mm/contig.c
@@ -233,6 +233,7 @@ paging_init (void)
         efi_memmap_walk(count_pages, &num_physpages);
 
         max_dma = virt_to_phys((void *) MAX_DMA_ADDRESS) >> PAGE_SHIFT;
+        memset(max_zone_pfns, 0, sizeof(max_zone_pfns));
         max_zone_pfns[ZONE_DMA] = max_dma;
         max_zone_pfns[ZONE_NORMAL] = max_low_pfn;
 
diff --git a/arch/ia64/mm/discontig.c b/arch/ia64/mm/discontig.c
index d497b6b0f5b2..96722cb1b49d 100644
--- a/arch/ia64/mm/discontig.c
+++ b/arch/ia64/mm/discontig.c
@@ -709,6 +709,7 @@ void __init paging_init(void)
                         max_pfn = mem_data[node].max_pfn;
         }
 
+        memset(max_zone_pfns, 0, sizeof(max_zone_pfns));
         max_zone_pfns[ZONE_DMA] = max_dma;
         max_zone_pfns[ZONE_NORMAL] = max_pfn;
         free_area_init_nodes(max_zone_pfns);