linux-kernel - Re: [patch 2/2] ALSA: oxfw: fix detect_loud

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Message-ID: <548BC483.4090703@sakamocchi.jp>
Date:	Sat, 13 Dec 2014 13:45:55 +0900
From:	Takashi Sakamoto <o-takashi@...amocchi.jp>
To:	Dan Carpenter <dan.carpenter@...cle.com>,
	Clemens Ladisch <clemens@...isch.de>
CC:	Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.de>,
	alsa-devel@...a-project.org, linux-kernel@...r.kernel.org,
	kernel-janitors@...r.kernel.org
Subject: Re: [patch 2/2] ALSA: oxfw: fix detect_loud_models() return value

On Dec 13 2014 04:28, Dan Carpenter wrote:
> This code causes a static checker warning:
> 
> 	sound/firewire/oxfw/oxfw.c:46 detect_loud_models()
> 	warn: signedness bug returning '(-2)'
> 
> The detect_loud_models() function should return false on falure, so that
> we don't try to set up the loud code for hardware that doesn't support
> it.
> 
> Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>
> 
> diff --git a/sound/firewire/oxfw/oxfw.c b/sound/firewire/oxfw/oxfw.c
> index cf1d0b5..60e5cad 100644
> --- a/sound/firewire/oxfw/oxfw.c
> +++ b/sound/firewire/oxfw/oxfw.c
> @@ -43,7 +43,7 @@ static bool detect_loud_models(struct fw_unit *unit)
>  	err = fw_csr_string(unit->directory, CSR_MODEL,
>  			    model, sizeof(model));
>  	if (err < 0)
> -		return err;
> +		return false;
>  
>  	for (i = 0; i < ARRAY_SIZE(models); i++) {
>  		if (strcmp(models[i], model) == 0)

Reviewd-by: Takashi Sakamoto <o-takashi@...amocchi.jp>


Thanks

Takashi Sakamoto
o-takashi@...amocchi.jp
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