From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <linux-kernel-owner@vger.kernel.org>
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
	id S1754501AbaLBTLW (ORCPT <rfc822;w@1wt.eu>);
	Tue, 2 Dec 2014 14:11:22 -0500
Received: from cantor2.suse.de ([195.135.220.15]:42542 "EHLO mx2.suse.de"
	rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP
	id S1753730AbaLBTLU (ORCPT <rfc822;linux-kernel@vger.kernel.org>);
	Tue, 2 Dec 2014 14:11:20 -0500
Date: Tue, 02 Dec 2014 20:11:18 +0100
Message-ID: <s5h1toh98a1.wl-tiwai@suse.de>
From: Takashi Iwai <tiwai@suse.de>
To: SF Markus Elfring <elfring@users.sourceforge.net>
Cc: Jaroslav Kysela <perex@perex.cz>, alsa-devel@alsa-project.org,
        LKML <linux-kernel@vger.kernel.org>, kernel-janitors@vger.kernel.org,
        Julia Lawall <julia.lawall@lip6.fr>
Subject: Re: [PATCH 1/1] ALSA: trident: Deletion of a check before snd_util_memhdr_free()
In-Reply-To: <547DFD4E.50207@users.sourceforge.net>
References: <5307CAA2.8060406@users.sourceforge.net>
	<alpine.DEB.2.02.1402212321410.2043@localhost6.localdomain6>
	<530A086E.8010901@users.sourceforge.net>
	<alpine.DEB.2.02.1402231635510.1985@localhost6.localdomain6>
	<530A72AA.3000601@users.sourceforge.net>
	<alpine.DEB.2.02.1402240658210.2090@localhost6.localdomain6>
	<530B5FB6.6010207@users.sourceforge.net>
	<alpine.DEB.2.10.1402241710370.2074@hadrien>
	<530C5E18.1020800@users.sourceforge.net>
	<alpine.DEB.2.10.1402251014170.2080@hadrien>
	<530CD2C4.4050903@users.sourceforge.net>
	<alpine.DEB.2.10.1402251840450.7035@hadrien>
	<530CF8FF.8080600@users.sourceforge.net>
	<alpine.DEB.2.02.1402252117150.2047@localhost6.localdomain6>
	<530DD06F.4090703@users.sourceforge.net>
	<alpine.DEB.2.02.1402262129250.2221@localhost6.localdomain6>
	<5317A59D.4@users.sourceforge.net>
	<547DFD4E.50207@users.sourceforge.net>
User-Agent: Wanderlust/2.15.9 (Almost Unreal) SEMI/1.14.6 (Maruoka)
 FLIM/1.14.9 (=?UTF-8?B?R29qxY0=?=) APEL/10.8 Emacs/24.4
 (x86_64-suse-linux-gnu) MULE/6.0 (HANACHIRUSATO)
MIME-Version: 1.0 (generated by SEMI 1.14.6 - "Maruoka")
Content-Type: text/plain; charset=US-ASCII
Sender: linux-kernel-owner@vger.kernel.org
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

At Tue, 02 Dec 2014 18:56:30 +0100,
SF Markus Elfring wrote:
> 
> From: Markus Elfring <elfring@users.sourceforge.net>
> Date: Tue, 2 Dec 2014 18:52:21 +0100
> 
> The snd_util_memhdr_free() function tests whether its argument is NULL
> and then returns immediately. Thus the test around the call is not needed.
> 
> This issue was detected by using the Coccinelle software.
> 
> Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>

Applied, thanks.


Takashi

> ---
>  sound/pci/trident/trident_main.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/sound/pci/trident/trident_main.c b/sound/pci/trident/trident_main.c
> index da875dc..57cd757 100644
> --- a/sound/pci/trident/trident_main.c
> +++ b/sound/pci/trident/trident_main.c
> @@ -3702,8 +3702,7 @@ static int snd_trident_free(struct snd_trident *trident)
>  		free_irq(trident->irq, trident);
>  	if (trident->tlb.buffer.area) {
>  		outl(0, TRID_REG(trident, NX_TLBC));
> -		if (trident->tlb.memhdr)
> -			snd_util_memhdr_free(trident->tlb.memhdr);
> +		snd_util_memhdr_free(trident->tlb.memhdr);
>  		if (trident->tlb.silent_page.area)
>  			snd_dma_free_pages(&trident->tlb.silent_page);
>  		vfree(trident->tlb.shadow_entries);
> -- 
> 2.1.3
>