sparc: handle pgtable_page_ctor() fail

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Acked-by: David S. Miller <davem@davemloft.net>
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/sparc/mm/srmmu.c b/arch/sparc/mm/srmmu.c
index 5d721df48a72..869023abe5a4 100644
--- a/arch/sparc/mm/srmmu.c
+++ b/arch/sparc/mm/srmmu.c
@@ -345,7 +345,10 @@ pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address)
         if ((pte = (unsigned long)pte_alloc_one_kernel(mm, address)) == 0)
                 return NULL;
         page = pfn_to_page(__nocache_pa(pte) >> PAGE_SHIFT);
-        pgtable_page_ctor(page);
+        if (!pgtable_page_ctor(page)) {
+                __free_page(page);
+                return NULL;
+        }
         return page;
 }