linux-kernel - Re: [PATCH] lm8333: Fix check ordering

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Message-ID: <20120704200550.GA13248@core.coreip.homeip.net>
Date:	Wed, 4 Jul 2012 13:05:50 -0700
From:	Dmitry Torokhov <dmitry.torokhov@...il.com>
To:	Alan Cox <alan@...rguk.ukuu.org.uk>
Cc:	linux-input@...r.kernel.org, linux-kernel@...r.kernel.org,
	Jiri Kosina <jkosina@...e.cz>
Subject: Re: [PATCH] lm8333: Fix check ordering

Hi Alan,

On Wed, Jul 04, 2012 at 03:57:00PM +0100, Alan Cox wrote:
> From: Alan Cox <alan@...ux.intel.com>
> 
> Fix harmless reference off end of array
> 
> Reported-by: <dcb314@...mail.com>
> Resolves-bug: https://bugzilla.kernel.org/show_bug.cgi?43861
> Signed-off-by: Alan Cox <alan@...ux.intel.com>
> ---
> 
>  drivers/input/keyboard/lm8333.c |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/input/keyboard/lm8333.c b/drivers/input/keyboard/lm8333.c
> index ca168a6..081fd9e 100644
> --- a/drivers/input/keyboard/lm8333.c
> +++ b/drivers/input/keyboard/lm8333.c
> @@ -91,7 +91,7 @@ static void lm8333_key_handler(struct lm8333 *lm8333)
>  		return;
>  	}
>  
> -	for (i = 0; keys[i] && i < LM8333_FIFO_TRANSFER_SIZE; i++) {
> +	for (i = 0; i < LM8333_FIFO_TRANSFER_SIZE && keys[i]; i++) {
>  		pressed = keys[i] & 0x80;
>  		code = keys[i] & 0x7f;
>  
> 

I believe Jiri has already queued this through trivial tree...

Thanks.

-- 
Dmitry
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