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| author | Kirill A. Shutemov <kirill.shutemov@linux.intel.com> | 2013-11-14 14:31:25 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-11-15 09:32:16 +0900 |
| commit | ca6ec3bbaaaf5941e970314a2eb3680b9e7e698a (patch) | |
| tree | 8a022056ae218eb513e7ddd5b3f84764260a71ba | |
| parent | 3fd681b68cd34eacb106b25fcb10bb202a3232c5 (diff) | |
| download | op-kernel-dev-ca6ec3bbaaaf5941e970314a2eb3680b9e7e698a.zip op-kernel-dev-ca6ec3bbaaaf5941e970314a2eb3680b9e7e698a.tar.gz | |
arc: handle pgtable_page_ctor() fail
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Acked-by: Vineet Gupta <vgupta@synopsys.com> [for arch/arc bits]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | arch/arc/include/asm/pgalloc.h | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/arch/arc/include/asm/pgalloc.h b/arch/arc/include/asm/pgalloc.h index 36a9f20..81208bfd 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; |
