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authorKirill A. Shutemov <kirill.shutemov@linux.intel.com>2013-11-14 14:31:27 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2013-11-15 09:32:16 +0900
commitd97a22913808b191c95fbfc51e6405c4504979e6 (patch)
treec5fb74da2b4e726c59b858d77b9fdde8b7d1760e
parentaffce5089a82a045274def17b44b13d10ab7c1d4 (diff)
downloadlinux-d97a22913808b191c95fbfc51e6405c4504979e6.tar.gz
arm64: handle pgtable_page_ctor() fail
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--arch/arm64/include/asm/pgalloc.h9
1 files changed, 6 insertions, 3 deletions
diff --git a/arch/arm64/include/asm/pgalloc.h b/arch/arm64/include/asm/pgalloc.h
index f214069ec5d5..9bea6e74a001 100644
--- a/arch/arm64/include/asm/pgalloc.h
+++ b/arch/arm64/include/asm/pgalloc.h
@@ -63,9 +63,12 @@ pte_alloc_one(struct mm_struct *mm, unsigned long addr)
struct page *pte;
pte = alloc_pages(PGALLOC_GFP, 0);
- if (pte)
- pgtable_page_ctor(pte);
-
+ if (!pte)
+ return NULL;
+ if (!pgtable_page_ctor(pte)) {
+ __free_page(pte);
+ return NULL;
+ }
return pte;
}