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| author | Kirill A. Shutemov <kirill.shutemov@linux.intel.com> | 2013-11-14 14:31:18 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-11-15 09:32:15 +0900 |
| commit | fecf3743b824ce4eb275ed4a1d6aee9494f6a966 (patch) | |
| tree | c7de27cd29a2b8896e605364a20bc3783ed5e06c /arch/m32r | |
| parent | 26db39027c00744107acf184527010a1e05907e7 (diff) | |
| download | lwn-fecf3743b824ce4eb275ed4a1d6aee9494f6a966.tar.gz lwn-fecf3743b824ce4eb275ed4a1d6aee9494f6a966.zip | |
m32r: fix potential NULL-pointer dereference
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>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/m32r')
| -rw-r--r-- | arch/m32r/include/asm/pgalloc.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/m32r/include/asm/pgalloc.h b/arch/m32r/include/asm/pgalloc.h index 0fc736198979..ac4208bcc5ad 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; } |