m32r: handle pgtable_page_ctor() fail

Signed-off-by: Kirill A. Shutemov <[email protected]> Cc: Hirokazu Takata <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
jackyding2679 · Nov 15, 2013 · 7251ab6 · 7251ab6
1 parent ca973d8
commit 7251ab6
Showing 1 changed file with 4 additions and 1 deletion.
diff --git 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;
 }