hexagon: handle pgtable_page_ctor() fail

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Richard Kuo <rkuo@codeaurora.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/arch/hexagon/include/asm/pgalloc.h b/arch/hexagon/include/asm/pgalloc.h
index 679bf6d664871377ef33a7c16f5cb6b25169c253..4c9d382d7798e6640f52034f5e713a025a7bdab8 100644 (file)
--- a/arch/hexagon/include/asm/pgalloc.h
+++ b/arch/hexagon/include/asm/pgalloc.h
@@ -65,10 +65,12 @@ static inline struct page *pte_alloc_one(struct mm_struct *mm,
        struct page *pte;
 
        pte = alloc_page(GFP_KERNEL | __GFP_REPEAT | __GFP_ZERO);
-
-       if (pte)
-               pgtable_page_ctor(pte);
-
+       if (!pte)
+               return NULL;
+       if (!pgtable_page_ctor(pte)) {
+               __free_page(pte);
+               return NULL;
+       }
        return pte;
 }