score: handle pgtable_page_ctor() fail

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Chen Liqin <liqin.chen@sunplusct.com>
Acked-by: Lennox Wu <lennox.wu@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 6 insertions, 3 deletions

diff --git a/arch/score/include/asm/pgalloc.h b/arch/score/include/asm/pgalloc.h
index 716b3fd1d863..2e067657db98 100644
--- a/arch/score/include/asm/pgalloc.h
+++ b/arch/score/include/asm/pgalloc.h
@@ -54,9 +54,12 @@ static inline struct page *pte_alloc_one(struct mm_struct *mm,
         struct page *pte;
 
         pte = alloc_pages(GFP_KERNEL | __GFP_REPEAT, PTE_ORDER);
-        if (pte) {
-                clear_highpage(pte);
-                pgtable_page_ctor(pte);
+        if (!pte)
+                return NULL;
+        clear_highpage(pte);
+        if (!pgtable_page_ctor(pte)) {
+                __free_page(pte);
+                return NULL;
         }
         return pte;
 }