Received: by 2002:a05:6a10:206:0:0:0:0 with SMTP id 6csp36994pxj; Wed, 16 Jun 2021 19:35:59 -0700 (PDT) X-Google-Smtp-Source: ABdhPJwS4TPxY/YeA4JB8WeCGKwvfS6dStD5bhas0d1MFVO2XpQDpy8Qhorok3kBEAF4FohS4sjJ X-Received: by 2002:a17:907:1c13:: with SMTP id nc19mr2684115ejc.168.1623897359127; Wed, 16 Jun 2021 19:35:59 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1623897359; cv=none; d=google.com; s=arc-20160816; b=kU3ZbHooE8iLg0XVpEB2JEtObdRPzRUQvEQ3WpXZ0njqDFBCDNHOYAwO41KPEHk2Wp +jjImxttdFhQI3slH3FOBOaumtwQnhBkxpDkjMheo4L1wlH/ooWdViDjWLT9m3DBbUyf D9+Y84Gj7UKORENy2gqUDjzZf+QJgENXqi+es/hUdwQxquPEuYPJvnlZVIiUcl/sGLpd bdH29LD/VtgWD9ExdFAAesBR0GW+4TjfI8WscBLfIIoUBA8g3t/69gd0YmjnOfgf+qvJ qHObZfO0/E6lffJnMk09ydjgEJSaraoNPPxDeKW3k52rNjjKg3M8FrfxzehDRw7zlnTf /kBA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:in-reply-to:content-disposition:mime-version :references:message-id:subject:cc:to:from:date; bh=jSdysK6Hc5kOYpA9iv456EaaXQ2GYmTP9XOzsxxXGo4=; b=X5KuxTLE4vaVCOuR6xGhy8cN0t8PPsqCpzBIB6WespK23jPrzfleJ3KB0gIMKQstRL JjDlQH/zEsj/b0dCYfNOF+sbcKlRA869zCAaNhDPy4nG8sLYOAU6E0K0gUkoBA3vg/LZ 71e+TCFwwnTdaR4zpl10zTexnmAHkemGbdE++4LIcTm5OskVERHvWWjorXldkTRT/fuV SzLtz6RmjlNbhTvNdOv3ZqK1hrji1O1vxDIZ4vLwmdJ35NnsMHsW9SXL65odIr2aFIgY yYN42mcjh9MwZq7Itb4xxN5PRTHz8mx6bmY/F2GrX6gVYuqCWNGq3hJrUp7MxHonaURC gMqg== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-ext4-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-ext4-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id v12si3551978ejv.679.2021.06.16.19.35.33; Wed, 16 Jun 2021 19:35:59 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-ext4-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-ext4-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-ext4-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234581AbhFPXcu (ORCPT + 99 others); Wed, 16 Jun 2021 19:32:50 -0400 Received: from outgoing-auth-1.mit.edu ([18.9.28.11]:60871 "EHLO outgoing.mit.edu" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S234508AbhFPXcu (ORCPT ); Wed, 16 Jun 2021 19:32:50 -0400 Received: from cwcc.thunk.org (pool-72-74-133-215.bstnma.fios.verizon.net [72.74.133.215]) (authenticated bits=0) (User authenticated as tytso@ATHENA.MIT.EDU) by outgoing.mit.edu (8.14.7/8.12.4) with ESMTP id 15GNUbU7032395 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 16 Jun 2021 19:30:37 -0400 Received: by cwcc.thunk.org (Postfix, from userid 15806) id 3C13115C3CB8; Wed, 16 Jun 2021 19:30:37 -0400 (EDT) Date: Wed, 16 Jun 2021 19:30:37 -0400 From: "Theodore Ts'o" To: Jiapeng Chong Cc: adilger.kernel@dilger.ca, linux-ext4@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] ext4: Remove redundant assignment to error Message-ID: References: <1619691409-83160-1-git-send-email-jiapeng.chong@linux.alibaba.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1619691409-83160-1-git-send-email-jiapeng.chong@linux.alibaba.com> Precedence: bulk List-ID: X-Mailing-List: linux-ext4@vger.kernel.org On Thu, Apr 29, 2021 at 06:16:49PM +0800, Jiapeng Chong wrote: > Variable error is set to zero but this value is never read as it's not > used later on, hence it is a redundant assignment and can be removed. > > Cleans up the following clang-analyzer warning: > > fs/ext4/ioctl.c:657:3: warning: Value stored to 'error' is never read > [clang-analyzer-deadcode.DeadStores]. > > Reported-by: Abaci Robot > Signed-off-by: Jiapeng Chong Applied, thanks. - Ted