From 1ae9ae5f7df726c67736c643c1f03f7bdfe748eb Mon Sep 17 00:00:00 2001 From: "Kirill A. Shutemov" Date: Thu, 14 Nov 2013 14:31:42 -0800 Subject: [PATCH] sparc: handle pgtable_page_ctor() fail Signed-off-by: Kirill A. Shutemov Acked-by: David S. Miller Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/sparc/mm/init_64.c | 11 ++++++----- arch/sparc/mm/srmmu.c | 5 ++++- 2 files changed, 10 insertions(+), 6 deletions(-) diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c index ed82edad1a39..d6de9353ee11 100644 --- a/arch/sparc/mm/init_64.c +++ b/arch/sparc/mm/init_64.c @@ -2519,12 +2519,13 @@ pgtable_t pte_alloc_one(struct mm_struct *mm, return pte; page = __alloc_for_cache(mm); - if (page) { - pgtable_page_ctor(page); - pte = (pte_t *) page_address(page); + if (!page) + return NULL; + if (!pgtable_page_ctor(page)) { + free_hot_cold_page(page, 0); + return NULL; } - - return pte; + return (pte_t *) page_address(page); } void pte_free_kernel(struct mm_struct *mm, pte_t *pte) 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; }