linux-kernel - Re: [PATCH] MIPS: sibyte: Add missing __user annotations in sb

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Message-ID: <20220222084648.GA7123@alpha.franken.de>
Date:   Tue, 22 Feb 2022 09:46:48 +0100
From:   Thomas Bogendoerfer <tsbogend@...ha.franken.de>
To:     linux-mips@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] MIPS: sibyte: Add missing __user annotations in
 sb_tbprof.c

On Thu, Feb 17, 2022 at 03:21:17PM +0100, Thomas Bogendoerfer wrote:
> Add missing __user annotations to fix sparse errors.
> 
> Signed-off-by: Thomas Bogendoerfer <tsbogend@...ha.franken.de>
> ---
>  arch/mips/sibyte/common/sb_tbprof.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/arch/mips/sibyte/common/sb_tbprof.c b/arch/mips/sibyte/common/sb_tbprof.c
> index f80d7a710333..bc47681e825a 100644
> --- a/arch/mips/sibyte/common/sb_tbprof.c
> +++ b/arch/mips/sibyte/common/sb_tbprof.c
> @@ -437,13 +437,13 @@ static int sbprof_tb_release(struct inode *inode, struct file *filp)
>  	return 0;
>  }
>  
> -static ssize_t sbprof_tb_read(struct file *filp, char *buf,
> +static ssize_t sbprof_tb_read(struct file *filp, char __user *buf,
>  			      size_t size, loff_t *offp)
>  {
>  	int cur_sample, sample_off, cur_count, sample_left;
>  	char *src;
>  	int   count   =	 0;
> -	char *dest    =	 buf;
> +	char __user *dest    =	 buf;
>  	long  cur_off = *offp;
>  
>  	if (!access_ok(buf, size))
> @@ -512,7 +512,7 @@ static long sbprof_tb_ioctl(struct file *filp,
>  		if (err)
>  			break;
>  
> -		err = put_user(TB_FULL, (int *) arg);
> +		err = put_user(TB_FULL, (int __user *) arg);
>  		break;
>  	}
>  
> -- 
> 2.29.2

applied to mips-next.

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessarily a
good idea.                                                [ RFC1925, 2.3 ]