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| author | Kirill A. Shutemov <kirill.shutemov@linux.intel.com> | 2013-11-14 14:31:42 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-11-15 09:32:19 +0900 |
| commit | 1ae9ae5f7df726c67736c643c1f03f7bdfe748eb (patch) | |
| tree | ea4172be40418472c7172de9f8d6e0796a846467 /arch | |
| parent | 478cf8ca013f9e33be978dee4d0a15906e5a030a (diff) | |
| download | kernel-common-1ae9ae5f7df726c67736c643c1f03f7bdfe748eb.tar.gz kernel-common-1ae9ae5f7df726c67736c643c1f03f7bdfe748eb.tar.bz2 kernel-common-1ae9ae5f7df726c67736c643c1f03f7bdfe748eb.zip | |
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>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/sparc/mm/init_64.c | 11 | ||||
| -rw-r--r-- | 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; } |