linux-kernel - Re: [patch v2] tty: cyclades: TIOCSERGETLSR should should store to a uint

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Date:	Tue, 06 Mar 2012 15:09:39 +0100
From:	Jiri Slaby <jslaby@...e.cz>
To:	Dan Carpenter <dan.carpenter@...cle.com>
CC:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org,
	Jiri Slaby <jirislaby@...il.com>
Subject: Re: [patch v2] tty: cyclades: TIOCSERGETLSR should should store to
 a uint

On 03/05/2012 07:07 PM, Dan Carpenter wrote:
> TIOCSERGETLSR should be saved in a uint so the cast here to unsigned
> long is a bug.
> 
> Reported-by: Jiri Slaby <jslaby@...e.cz>
> Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>

ACK. Thanks.

> ---
> v2: completely different from v1.
> 
> diff --git a/drivers/tty/cyclades.c b/drivers/tty/cyclades.c
> index c9bf779..5575fee 100644
> --- a/drivers/tty/cyclades.c
> +++ b/drivers/tty/cyclades.c
> @@ -2413,7 +2413,7 @@ static int get_lsr_info(struct cyclades_port *info, unsigned int __user *value)
>  		/* Not supported yet */
>  		return -EINVAL;
>  	}
> -	return put_user(result, (unsigned long __user *)value);
> +	return put_user(result, value);
>  }
>  
>  static int cy_tiocmget(struct tty_struct *tty)
-- 
js
suse labs
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