From patchwork Tue Dec 2 21:55:57 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: SF Markus Elfring X-Patchwork-Id: 417155 Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 92E1114019D for ; Wed, 3 Dec 2014 08:56:46 +1100 (AEDT) Received: from ozlabs.org (ozlabs.org [103.22.144.67]) by lists.ozlabs.org (Postfix) with ESMTP id 4519F1A0CD0 for ; Wed, 3 Dec 2014 08:56:46 +1100 (AEDT) X-Original-To: linuxppc-dev@lists.ozlabs.org Delivered-To: linuxppc-dev@lists.ozlabs.org Received: from mout.web.de (mout.web.de [212.227.15.14]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 748C41A0588 for ; Wed, 3 Dec 2014 08:56:08 +1100 (AEDT) Received: from [192.168.1.2] ([78.49.97.194]) by smtp.web.de (mrweb003) with ESMTPSA (Nemesis) id 0LdF3J-1YMhWK1hCL-00iQaO; Tue, 02 Dec 2014 22:56:01 +0100 Message-ID: <547E356D.9050609@users.sourceforge.net> Date: Tue, 02 Dec 2014 22:55:57 +0100 From: SF Markus Elfring User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.2.0 MIME-Version: 1.0 To: Jaroslav Kysela , Johannes Berg , Takashi Iwai , alsa-devel@alsa-project.org, linuxppc-dev@lists.ozlabs.org Subject: [PATCH] ALSA: i2sbus: Deletion of unnecessary checks before the function call "release_and_free_resource" References: <5307CAA2.8060406@users.sourceforge.net> <530A086E.8010901@users.sourceforge.net> <530A72AA.3000601@users.sourceforge.net> <530B5FB6.6010207@users.sourceforge.net> <530C5E18.1020800@users.sourceforge.net> <530CD2C4.4050903@users.sourceforge.net> <530CF8FF.8080600@users.sourceforge.net> <530DD06F.4090703@users.sourceforge.net> <5317A59D.4@users.sourceforge.net> In-Reply-To: <5317A59D.4@users.sourceforge.net> X-Provags-ID: V03:K0:V1+5DNS/FUAfj8RizgIx8AUGiVZofcaOReULh1u77jez4+xHoyn bAc2x9ky9GSZ2fRlLRZt87rKFcNuuRGGZ/YoJ4Z/+s/TjkckzGBDgtpru98yPlLqo9607D4 9aHeVlAUuWadJ9dhLn3AWVFCJ2d7Q4HhRJUUxCtL7n7LWDcPVTZAH2PAE3TilygMCyoJ1wz YRlKKXWu2x2tj4h2rVnUQ== X-UI-Out-Filterresults: notjunk:1; Cc: Julia Lawall , kernel-janitors@vger.kernel.org, LKML X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" From: Markus Elfring Date: Tue, 2 Dec 2014 22:50:24 +0100 The release_and_free_resource() 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 --- sound/aoa/soundbus/i2sbus/core.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/sound/aoa/soundbus/i2sbus/core.c b/sound/aoa/soundbus/i2sbus/core.c index a80d5ea..4e2b4fb 100644 --- a/sound/aoa/soundbus/i2sbus/core.c +++ b/sound/aoa/soundbus/i2sbus/core.c @@ -79,8 +79,7 @@ static void i2sbus_release_dev(struct device *dev) if (i2sdev->out.dbdma) iounmap(i2sdev->out.dbdma); if (i2sdev->in.dbdma) iounmap(i2sdev->in.dbdma); for (i = aoa_resource_i2smmio; i <= aoa_resource_rxdbdma; i++) - if (i2sdev->allocated_resource[i]) - release_and_free_resource(i2sdev->allocated_resource[i]); + release_and_free_resource(i2sdev->allocated_resource[i]); free_dbdma_descriptor_ring(i2sdev, &i2sdev->out.dbdma_ring); free_dbdma_descriptor_ring(i2sdev, &i2sdev->in.dbdma_ring); for (i = aoa_resource_i2smmio; i <= aoa_resource_rxdbdma; i++) @@ -323,8 +322,7 @@ static int i2sbus_add_dev(struct macio_dev *macio, if (dev->out.dbdma) iounmap(dev->out.dbdma); if (dev->in.dbdma) iounmap(dev->in.dbdma); for (i=0;i<3;i++) - if (dev->allocated_resource[i]) - release_and_free_resource(dev->allocated_resource[i]); + release_and_free_resource(dev->allocated_resource[i]); mutex_destroy(&dev->lock); kfree(dev); return 0;