Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 06AAAC6FD1C for ; Sat, 11 Mar 2023 20:23:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229515AbjCKUXh (ORCPT ); Sat, 11 Mar 2023 15:23:37 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42934 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229685AbjCKUXf (ORCPT ); Sat, 11 Mar 2023 15:23:35 -0500 Received: from mx01.omp.ru (mx01.omp.ru [90.154.21.10]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A437719A0; Sat, 11 Mar 2023 12:23:33 -0800 (PST) Received: from [192.168.1.103] (31.173.84.174) by msexch01.omp.ru (10.188.4.12) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.2.986.14; Sat, 11 Mar 2023 23:23:25 +0300 Subject: Re: [PATCH] pata_parport: fix possible memory leak To: Sergei Shtylyov , Ondrej Zary , Damien Le Moal CC: Dan Carpenter , Christoph Hellwig , , References: <3ab89ddc-cb60-47c4-86ad-cdad94a8a3d7@kili.mountain> <20230311185149.22957-1-linux@zary.sk> From: Sergey Shtylyov Organization: Open Mobile Platform Message-ID: <2223c1dc-1869-a307-e5da-772cb27b34e5@omp.ru> Date: Sat, 11 Mar 2023 23:23:25 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.10.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset="utf-8" Content-Language: en-US Content-Transfer-Encoding: 7bit X-Originating-IP: [31.173.84.174] X-ClientProxiedBy: msexch01.omp.ru (10.188.4.12) To msexch01.omp.ru (10.188.4.12) X-KSE-ServerInfo: msexch01.omp.ru, 9 X-KSE-AntiSpam-Interceptor-Info: scan successful X-KSE-AntiSpam-Version: 5.9.59, Database issued on: 03/11/2023 20:03:14 X-KSE-AntiSpam-Status: KAS_STATUS_NOT_DETECTED X-KSE-AntiSpam-Method: none X-KSE-AntiSpam-Rate: 59 X-KSE-AntiSpam-Info: Lua profiles 176022 [Mar 10 2023] X-KSE-AntiSpam-Info: Version: 5.9.59.0 X-KSE-AntiSpam-Info: Envelope from: s.shtylyov@omp.ru X-KSE-AntiSpam-Info: LuaCore: 507 507 08d345461d9bcca7095738422a5279ab257bb65a X-KSE-AntiSpam-Info: {rep_avail} X-KSE-AntiSpam-Info: {Tracking_arrow_text} X-KSE-AntiSpam-Info: {Tracking_uf_ne_domains} X-KSE-AntiSpam-Info: {Tracking_from_domain_doesnt_match_to} X-KSE-AntiSpam-Info: {relay has no DNS name} X-KSE-AntiSpam-Info: {SMTP from is not routable} X-KSE-AntiSpam-Info: {Found in DNSBL: 31.173.84.174 in (user) b.barracudacentral.org} X-KSE-AntiSpam-Info: {Found in DNSBL: 31.173.84.174 in (user) dbl.spamhaus.org} X-KSE-AntiSpam-Info: d41d8cd98f00b204e9800998ecf8427e.com:7.1.1;omp.ru:7.1.1;31.173.84.174:7.7.3,7.4.1;lore.kernel.org:7.1.1;127.0.0.199:7.1.2 X-KSE-AntiSpam-Info: {iprep_blacklist} X-KSE-AntiSpam-Info: ApMailHostAddress: 31.173.84.174 X-KSE-AntiSpam-Info: {DNS response errors} X-KSE-AntiSpam-Info: Rate: 59 X-KSE-AntiSpam-Info: Status: not_detected X-KSE-AntiSpam-Info: Method: none X-KSE-AntiSpam-Info: Auth:dmarc=temperror header.from=omp.ru;spf=temperror smtp.mailfrom=omp.ru;dkim=none X-KSE-Antiphishing-Info: Clean X-KSE-Antiphishing-ScanningType: Heuristic X-KSE-Antiphishing-Method: None X-KSE-Antiphishing-Bases: 03/11/2023 20:06:00 X-KSE-AttachmentFiltering-Interceptor-Info: protection disabled X-KSE-Antivirus-Interceptor-Info: scan successful X-KSE-Antivirus-Info: Clean, bases: 3/11/2023 6:14:00 PM X-KSE-BulkMessagesFiltering-Scan-Result: InTheLimit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 3/11/23 11:19 PM, Sergei Shtylyov wrote: >> When ida_alloc() fails, "pi" is not freed although the misleading >> comment says otherwise. >> Move the ida_alloc() call up so we really don't have to free it. Wait, but don't we still need to call kfree() in pi_init_one()? >> Reported-by: kernel test robot >> Reported-by: Dan Carpenter >> Link: https://lore.kernel.org/r/202303111822.IHNchbkp-lkp@intel.com/ >> Signed-off-by: Ondrej Zary > > Reviewed-by: Sergey Shtylyov > > [...] MBR, Sergey