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Subject[PATCH 03/34] m32r: fix potential NULL-pointer dereference
Date
Add missing check for memory allocation fail.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Hirokazu Takata <takata@linux-m32r.org>
---
arch/m32r/include/asm/pgalloc.h | 2 ++
1 file changed, 2 insertions(+)

diff --git a/arch/m32r/include/asm/pgalloc.h b/arch/m32r/include/asm/pgalloc.h
index 0fc7361989..ac4208bcc5 100644
--- a/arch/m32r/include/asm/pgalloc.h
+++ b/arch/m32r/include/asm/pgalloc.h
@@ -43,6 +43,8 @@ static __inline__ pgtable_t pte_alloc_one(struct mm_struct *mm,
{
struct page *pte = alloc_page(GFP_KERNEL|__GFP_ZERO);

+ if (!pte)
+ return NULL;
pgtable_page_ctor(pte);
return pte;
}
--
1.8.4.rc3


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