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| author | Kirill A. Shutemov <kirill.shutemov@linux.intel.com> | 2013-11-15 02:31:46 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-11-15 04:32:19 +0400 |
| commit | e90bedbb8a847a0e6debe0e00b6f69b788fca92e (patch) | |
| tree | db0527ed2027b15022d86493f30e15ee8e6ad334 /arch/unicore32 | |
| parent | 647f884e67dd920e01046a1ae87aa2c2d315479a (diff) | |
| download | linux-e90bedbb8a847a0e6debe0e00b6f69b788fca92e.tar.xz | |
unicore32: handle pgtable_page_ctor() fail
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/unicore32')
| -rw-r--r-- | arch/unicore32/include/asm/pgalloc.h | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/arch/unicore32/include/asm/pgalloc.h b/arch/unicore32/include/asm/pgalloc.h index 0213e373a895..2e02d1356fdf 100644 --- a/arch/unicore32/include/asm/pgalloc.h +++ b/arch/unicore32/include/asm/pgalloc.h @@ -51,12 +51,14 @@ pte_alloc_one(struct mm_struct *mm, unsigned long addr) struct page *pte; pte = alloc_pages(PGALLOC_GFP, 0); - if (pte) { - if (!PageHighMem(pte)) { - void *page = page_address(pte); - clean_dcache_area(page, PTRS_PER_PTE * sizeof(pte_t)); - } - pgtable_page_ctor(pte); + if (!pte) + return NULL; + if (!PageHighMem(pte)) { + void *page = page_address(pte); + clean_dcache_area(page, PTRS_PER_PTE * sizeof(pte_t)); + } + if (!pgtable_page_ctor(pte)) { + __free_page(pte); } return pte; |