From patchwork Sat Nov 29 17:40:28 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: 5406961 Return-Path: X-Original-To: patchwork-linux-spi@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 669669F1C5 for ; Sat, 29 Nov 2014 17:40:49 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 9984B200FF for ; Sat, 29 Nov 2014 17:40:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id CC4D420155 for ; Sat, 29 Nov 2014 17:40:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751312AbaK2Rkr (ORCPT ); Sat, 29 Nov 2014 12:40:47 -0500 Received: from mout.web.de ([212.227.15.3]:55112 "EHLO mout.web.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751302AbaK2Rkq (ORCPT ); Sat, 29 Nov 2014 12:40:46 -0500 Received: from [192.168.1.2] ([78.49.36.109]) by smtp.web.de (mrweb004) with ESMTPSA (Nemesis) id 0MN87U-1XoCQo47TM-006gae; Sat, 29 Nov 2014 18:40:39 +0100 Message-ID: <547A050C.5040906@users.sourceforge.net> Date: Sat, 29 Nov 2014 18:40:28 +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: Mark Brown , linux-spi@vger.kernel.org CC: LKML , kernel-janitors@vger.kernel.org, Julia Lawall Subject: [PATCH 1/1] SPI-txx9: Deletion of an unnecessary check before the function call "clk_disable" 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:iOIhU4oYspCjVuBi9zsdc3iobrErwnP07z7/rt4kIcxtIJGdVqw 3WdDbLg2FUEgmHUAkUk0kRdJgRLrw3nIzsbYl4RjWKamX/+vdhC84Zf9GzlNLjzYgsQNu7x wurCMuWe6Ebve0HqO+vonfW+5VaK8p8P6HffkpRhPUKPjPLQKj+S8P4vYY+XKMpzWQIiWOt ebYhHr8N0nCpBe0mYbQNw== X-UI-Out-Filterresults: notjunk:1; Sender: linux-spi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Markus Elfring Date: Sat, 29 Nov 2014 18:34:20 +0100 The clk_disable() 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 --- drivers/spi/spi-txx9.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/spi/spi-txx9.c b/drivers/spi/spi-txx9.c index 0da7c67..9190124 100644 --- a/drivers/spi/spi-txx9.c +++ b/drivers/spi/spi-txx9.c @@ -402,8 +402,7 @@ exit_busy: exit: if (c->workqueue) destroy_workqueue(c->workqueue); - if (c->clk) - clk_disable(c->clk); + clk_disable(c->clk); spi_master_put(master); return ret; }