From 76b3aec332e74596c517e1198764a5aeb8ea8398 Mon Sep 17 00:00:00 2001 From: "Kirill A. Shutemov" Date: Thu, 14 Nov 2013 14:31:43 -0800 Subject: [PATCH] tile: handle pgtable_page_ctor() fail Signed-off-by: Kirill A. Shutemov Acked-by: Chris Metcalf Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/tile/mm/pgtable.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/arch/tile/mm/pgtable.c b/arch/tile/mm/pgtable.c index 4fd9ec0b58ed..5e86eac4bfae 100644 --- a/arch/tile/mm/pgtable.c +++ b/arch/tile/mm/pgtable.c @@ -241,6 +241,11 @@ struct page *pgtable_alloc_one(struct mm_struct *mm, unsigned long address, if (p == NULL) return NULL; + if (!pgtable_page_ctor(p)) { + __free_pages(p, L2_USER_PGTABLE_ORDER); + return NULL; + } + /* * Make every page have a page_count() of one, not just the first. * We don't use __GFP_COMP since it doesn't look like it works @@ -251,7 +256,6 @@ struct page *pgtable_alloc_one(struct mm_struct *mm, unsigned long address, inc_zone_page_state(p+i, NR_PAGETABLE); } - pgtable_page_ctor(p); return p; } -- 2.34.1