m32r: handle pgtable_page_ctor() fail

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 4 insertions, 1 deletions

diff --git a/arch/m32r/include/asm/pgalloc.h b/arch/m32r/include/asm/pgalloc.h
index ac4208bcc5ad..2d55a064ccac 100644
--- a/arch/m32r/include/asm/pgalloc.h
+++ b/arch/m32r/include/asm/pgalloc.h
@@ -45,7 +45,10 @@ static __inline__ pgtable_t pte_alloc_one(struct mm_struct *mm,
 
         if (!pte)
                 return NULL;
-        pgtable_page_ctor(pte);
+        if (!pgtable_page_ctor(pte)) {
+                __free_page(pte);
+                return NULL;
+        }
         return pte;
 }