1 files changed, 3 insertions, 2 deletions

diff --git a/arch/s390/mm/vmem.c b/arch/s390/mm/vmem.c
index beccacf907f3..e4868bfc672f 100644
--- a/arch/s390/mm/vmem.c
+++ b/arch/s390/mm/vmem.c
@@ -60,7 +60,7 @@ static inline pmd_t *vmem_pmd_alloc(void)
         return pmd;
 }
 
-static pte_t __init_refok *vmem_pte_alloc(void)
+static pte_t __ref *vmem_pte_alloc(void)
 {
         pte_t *pte;
 
@@ -221,6 +221,7 @@ int __meminit vmemmap_populate(struct page *start, unsigned long nr, int node)
                         *pt_dir = pte;
                 }
         }
+        memset(start, 0, nr * sizeof(struct page));
         ret = 0;
 out:
         flush_tlb_kernel_range(start_addr, end_addr);
@@ -235,7 +236,7 @@ static int insert_memory_segment(struct memory_segment *seg)
 {
         struct memory_segment *tmp;
 
-        if (seg->start + seg->size >= VMEM_MAX_PHYS ||
+        if (seg->start + seg->size > VMEM_MAX_PHYS ||
             seg->start + seg->size < seg->start)
                 return -ERANGE;