From patchwork Thu Nov 20 16:47:29 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: 412785 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id E56A7140170 for ; Fri, 21 Nov 2014 03:48:01 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756740AbaKTQrr (ORCPT ); Thu, 20 Nov 2014 11:47:47 -0500 Received: from mout.web.de ([212.227.17.12]:51077 "EHLO mout.web.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757402AbaKTQrq (ORCPT ); Thu, 20 Nov 2014 11:47:46 -0500 Received: from [192.168.1.2] ([78.48.101.99]) by smtp.web.de (mrweb103) with ESMTPSA (Nemesis) id 0Lw0q9-1Y1tGV0UV3-017msc; Thu, 20 Nov 2014 17:47:42 +0100 Message-ID: <546E1B21.2070206@users.sourceforge.net> Date: Thu, 20 Nov 2014 17:47:29 +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: Bjorn Helgaas , Scott Murray , linux-pci@vger.kernel.org CC: LKML , kernel-janitors@vger.kernel.org, Julia Lawall Subject: [PATCH 1/1] PCI: hotplug: Deletion of an unnecessary check before the function call "pci_dev_put" 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:HwHPzuRrFxKlvjeZffSwq2855e3brNNTdunVscDHtGNrJcJgBgG jXmRHe6dmUNXtYI/lT1uUPF0JeStPdnfXRwwgf03qW5m9bU9FSxXHagHM851ISCtby0Vqn3 B4eJRGOQABeqOWN6RQb3bJCqjsIhPYeI1aCLftPe5yFy8vmqvRtDpsMtwBTapLjrtH5fV1X 1cvbiPah3oV4hJH+1lDQg== X-UI-Out-Filterresults: notjunk:1; Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org From: Markus Elfring Date: Thu, 20 Nov 2014 17:42:23 +0100 The pci_dev_put() 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/pci/hotplug/cpci_hotplug_core.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/pci/hotplug/cpci_hotplug_core.c b/drivers/pci/hotplug/cpci_hotplug_core.c index e09cf78..82c969b 100644 --- a/drivers/pci/hotplug/cpci_hotplug_core.c +++ b/drivers/pci/hotplug/cpci_hotplug_core.c @@ -211,8 +211,7 @@ static void release_slot(struct hotplug_slot *hotplug_slot) kfree(slot->hotplug_slot->info); kfree(slot->hotplug_slot); - if (slot->dev) - pci_dev_put(slot->dev); + pci_dev_put(slot->dev); kfree(slot); }