linux-kernel - Re: [PATCH] exec: Fix incorrect type for ret

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Message-ID: <39e80575-f024-43e4-8760-0a535f84b4ca@gmail.com>
Date: Mon, 25 Aug 2025 12:28:29 +0400
From: Giorgi Tchankvetadze <giorgitchankvetadze1997@...il.com>
To: Xichao Zhao <zhao.xichao@...o.com>, kees@...nel.org,
 viro@...iv.linux.org.uk, brauner@...nel.org
Cc: jack@...e.cz, linux-mm@...ck.org, linux-fsdevel@...r.kernel.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH] exec: Fix incorrect type for ret

LGTM

On 8/25/2025 11:36 AM, Xichao Zhao wrote:
> In the setup_arg_pages(), ret is declared as an unsigned long.
> The ret might take a negative value. Therefore, its type should
> be changed to int.
> 
> Signed-off-by: Xichao Zhao <zhao.xichao@...o.com>
> ---
>   fs/exec.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/fs/exec.c b/fs/exec.c
> index 2a1e5e4042a1..5d236bb87df5 100644
> --- a/fs/exec.c
> +++ b/fs/exec.c
> @@ -599,7 +599,7 @@ int setup_arg_pages(struct linux_binprm *bprm,
>   		    unsigned long stack_top,
>   		    int executable_stack)
>   {
> -	unsigned long ret;
> +	int ret;
>   	unsigned long stack_shift;
>   	struct mm_struct *mm = current->mm;
>   	struct vm_area_struct *vma = bprm->vma;