From: "Kirill A. Shutemov" <kirill.shutemov@xxxxxxxxxxxxxxx>
This patch has been added to the 3.12 stable tree. If you have any
objections, please let us know.
===============
commit ca6ec3bbaaaf5941e970314a2eb3680b9e7e698a upstream.
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>
Acked-by: Vineet Gupta <vgupta@xxxxxxxxxxxx> [for arch/arc bits]
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Jiri Slaby <jslaby@xxxxxxx>
---
arch/arc/include/asm/pgalloc.h | 11 ++++++++---
1 file changed, 8 insertions(+), 3 deletions(-)
diff --git a/arch/arc/include/asm/pgalloc.h b/arch/arc/include/asm/pgalloc.h
index 36a9f20c21a3..81208bfd9dcb 100644
--- a/arch/arc/include/asm/pgalloc.h
+++ b/arch/arc/include/asm/pgalloc.h
@@ -105,11 +105,16 @@ static inline pgtable_t
pte_alloc_one(struct mm_struct *mm, unsigned long address)
{
pgtable_t pte_pg;
+ struct page *page;
pte_pg = __get_free_pages(GFP_KERNEL | __GFP_REPEAT, __get_order_pte());
- if (pte_pg) {
- memzero((void *)pte_pg, PTRS_PER_PTE * 4);
- pgtable_page_ctor(virt_to_page(pte_pg));
+ if (!pte_pg)
+ return 0;
+ memzero((void *)pte_pg, PTRS_PER_PTE * 4);
+ page = virt_to_page(pte_pg);
+ if (!pgtable_page_ctor(page)) {
+ __free_page(page);
+ return 0;
}
return pte_pg;
--
2.0.0
--
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