linux-kernel - Re: [patch 06/15] clocksource: Split out user string input

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Date:	Wed, 15 May 2013 11:41:48 +0200 (CEST)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	John Stultz <john.stultz@...aro.org>
cc:	LKML <linux-kernel@...r.kernel.org>, Ingo Molnar <mingo@...e.hu>,
	Magnus Damm <magnus.damm@...il.com>
Subject: Re: [patch 06/15] clocksource: Split out user string input

On Mon, 29 Apr 2013, John Stultz wrote:
> On Thu, Apr 25, 2013 at 1:31 PM, Thomas Gleixner <tglx@...utronix.de> wrote:
> So you probably want something like the following patch to fix this.

Yep, stupid me.
 
> thanks
> -john
> 
> 
> 
> diff --git a/kernel/time/clocksource.c b/kernel/time/clocksource.c
> index e9c4f04..5f6c324 100644
> --- a/kernel/time/clocksource.c
> +++ b/kernel/time/clocksource.c
> @@ -836,6 +836,8 @@ sysfs_show_current_clocksources(struct device *dev,
> 
>  static size_t clocksource_get_uname(const char *buf, char *dst, size_t cnt)
>  {
> +	size_t ret = cnt;
> +
>  	/* strings from sysfs write are not 0 terminated! */
>  	if (!cnt || cnt >= CS_NAME_LEN)
>  		return -EINVAL;
> @@ -846,7 +848,7 @@ static size_t clocksource_get_uname(const char *buf, char
> *dst, size_t cnt)
>  	if (cnt > 0)
>  		memcpy(dst, buf, cnt);
>  	dst[cnt] = 0;
> -	return cnt;
> +	return ret;
>  }
> 
>  /**
> 
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