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| author | Kirill A. Shutemov <kirill.shutemov@linux.intel.com> | 2013-11-14 14:31:44 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-11-15 09:32:19 +0900 |
| commit | 647f884e67dd920e01046a1ae87aa2c2d315479a (patch) | |
| tree | bd1b5f7fdb236a3041d27e41f37cd011e77499b0 /arch/um | |
| parent | 76b3aec332e74596c517e1198764a5aeb8ea8398 (diff) | |
| download | linux-stable-647f884e67dd920e01046a1ae87aa2c2d315479a.tar.gz linux-stable-647f884e67dd920e01046a1ae87aa2c2d315479a.tar.bz2 linux-stable-647f884e67dd920e01046a1ae87aa2c2d315479a.zip | |
um: handle pgtable_page_ctor() fail
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Richard Weinberger <richard@nod.at>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/um')
| -rw-r--r-- | arch/um/kernel/mem.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/arch/um/kernel/mem.c b/arch/um/kernel/mem.c index 7ddb64baf327..8636e905426f 100644 --- a/arch/um/kernel/mem.c +++ b/arch/um/kernel/mem.c @@ -279,8 +279,12 @@ pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address) struct page *pte; pte = alloc_page(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO); - if (pte) - pgtable_page_ctor(pte); + if (!pte) + return NULL; + if (!pgtable_page_ctor(pte)) { + __free_page(pte); + return NULL; + } return pte; } |