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SubjectRe: [PATCH trivial] include/linux/huge_mm.h: Return NULL instead of false for pmd_trans_huge_lock()
On Mon, Mar 28, 2016 at 10:49:54PM +0800, chengang@emindsoft.com.cn wrote:
> From: Chen Gang <chengang@emindsoft.com.cn>
>
> The return value of pmd_trans_huge_lock() is a pointer, not a boolean
> value, so use NULL instead of false as the return value.
>
> Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>

Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>

> ---
> include/linux/huge_mm.h | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/include/linux/huge_mm.h b/include/linux/huge_mm.h
> index 79b0ef6..7008623 100644
> --- a/include/linux/huge_mm.h
> +++ b/include/linux/huge_mm.h
> @@ -127,7 +127,7 @@ static inline spinlock_t *pmd_trans_huge_lock(pmd_t *pmd,
> if (pmd_trans_huge(*pmd) || pmd_devmap(*pmd))
> return __pmd_trans_huge_lock(pmd, vma);
> else
> - return false;
> + return NULL;
> }
> static inline int hpage_nr_pages(struct page *page)
> {
> --
> 1.9.3
>

--
Kirill A. Shutemov

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