linux-kernel - Re: [PATCH -next] ALSA: bebob: Fix missing unlock on error in special_clk_ctl

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Message-ID: <53CB7518.9080502@sakamocchi.jp>
Date:	Sun, 20 Jul 2014 16:51:52 +0900
From:	Takashi Sakamoto <o-takashi@...amocchi.jp>
To:	weiyj_lk@....com, Clemens Ladisch <clemens@...isch.de>,
	Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.de>
CC:	Wei Yongjun <yongjun_wei@...ndmicro.com.cn>,
	alsa-devel@...a-project.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH -next] ALSA: bebob: Fix missing unlock on error in special_clk_ctl_put()

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Hi Wei,

Thanks for this patch, while I found the other issues in this file. I
would like to post new patches instead of yours, later.


Thanks

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

(Jul 20 2014 13:50), weiyj_lk@....com wrote:
> From: Wei Yongjun <yongjun_wei@...ndmicro.com.cn>
> 
> Add the missing unlock before return from function
> special_clk_ctl_put() in the error handling case.
> 
> Signed-off-by: Wei Yongjun <yongjun_wei@...ndmicro.com.cn> --- 
> sound/firewire/bebob/bebob_maudio.c | 4 +++- 1 file changed, 3
> insertions(+), 1 deletion(-)
> 
> diff --git a/sound/firewire/bebob/bebob_maudio.c
> b/sound/firewire/bebob/bebob_maudio.c index 6af50eb..6748515
> 100644 --- a/sound/firewire/bebob/bebob_maudio.c +++
> b/sound/firewire/bebob/bebob_maudio.c @@ -382,8 +382,10 @@ static
> int special_clk_ctl_put(struct snd_kcontrol *kctl, 
> mutex_lock(&bebob->mutex);
> 
> id = uval->value.enumerated.item[0]; -	if (id >=
> ARRAY_SIZE(special_clk_labels)) +	if (id >=
> ARRAY_SIZE(special_clk_labels)) { +		mutex_unlock(&bebob->mutex); 
> return 0; +	}
> 
> err = avc_maudio_set_special_clk(bebob, id, params->dig_in_fmt,
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