Signed-off-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>
Cc: Martin Schwidefsky <schwidefsky@xxxxxxxxxx>
Cc: Heiko Carstens <heiko.carstens@xxxxxxxxxx>
---
arch/s390/mm/pgtable.c | 11 +++++++++--
1 file changed, 9 insertions(+), 2 deletions(-)
diff --git a/arch/s390/mm/pgtable.c b/arch/s390/mm/pgtable.c
index c463e5cd3b..b109edb90b 100644
--- a/arch/s390/mm/pgtable.c
+++ b/arch/s390/mm/pgtable.c
@@ -754,7 +754,11 @@ static inline unsigned long *page_table_alloc_pgste(struct mm_struct *mm,
__free_page(page);
return NULL;
}
- pgtable_page_ctor(page);
+ if (!pgtable_page_ctor(page)) {
+ kfree(mp);
+ __free_page(page);
+ return NULL;
+ }
mp->vmaddr = vmaddr & PMD_MASK;
INIT_LIST_HEAD(&mp->mapper);
page->index = (unsigned long) mp;
@@ -884,7 +888,10 @@ unsigned long *page_table_alloc(struct mm_struct *mm, unsigned long vmaddr)
page = alloc_page(GFP_KERNEL|__GFP_REPEAT);
if (!page)
return NULL;
- pgtable_page_ctor(page);
+ if (!pgtable_page_ctor(page)) {
+ __free_page(page);
+ return NULL;
+ }
atomic_set(&page->_mapcount, 1);
table = (unsigned long *) page_to_phys(page);
clear_table(table, _PAGE_INVALID, PAGE_SIZE);
--
1.8.4.rc3
--
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