From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, NICE_REPLY_A,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 25B06C433E2 for ; Wed, 2 Sep 2020 18:36:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id EE94420758 for ; Wed, 2 Sep 2020 18:36:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728158AbgIBSgV (ORCPT ); Wed, 2 Sep 2020 14:36:21 -0400 Received: from www62.your-server.de ([213.133.104.62]:52302 "EHLO www62.your-server.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726567AbgIBSgU (ORCPT ); Wed, 2 Sep 2020 14:36:20 -0400 Received: from sslproxy06.your-server.de ([78.46.172.3]) by www62.your-server.de with esmtpsa (TLSv1.2:DHE-RSA-AES256-GCM-SHA384:256) (Exim 4.89_1) (envelope-from ) id 1kDXcF-0004tt-Vh; Wed, 02 Sep 2020 20:36:16 +0200 Received: from [178.196.57.75] (helo=pc-9.home) by sslproxy06.your-server.de with esmtpsa (TLSv1.3:TLS_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1kDXcF-000Xs7-Nq; Wed, 02 Sep 2020 20:36:15 +0200 Subject: Re: [PATCH] xsk: Free variable on error path To: Alex Dewar Cc: =?UTF-8?B?QmrDtnJuIFTDtnBlbA==?= , Magnus Karlsson , Jonathan Lemon , "David S. Miller" , Jakub Kicinski , Alexei Starovoitov , Jesper Dangaard Brouer , John Fastabend , netdev@vger.kernel.org, bpf@vger.kernel.org, linux-kernel@vger.kernel.org References: <20200902163319.345284-1-alex.dewar90@gmail.com> From: Daniel Borkmann Message-ID: Date: Wed, 2 Sep 2020 20:36:15 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.7.2 MIME-Version: 1.0 In-Reply-To: <20200902163319.345284-1-alex.dewar90@gmail.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-Authenticated-Sender: daniel@iogearbox.net X-Virus-Scanned: Clear (ClamAV 0.102.4/25918/Wed Sep 2 15:41:14 2020) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 9/2/20 6:33 PM, Alex Dewar wrote: > In xp_create_dma_map(), memory is allocated to dma_map->dma_pages, but > then dma_map is erroneously compared to NULL, rather than the member. > Fix this. > > Addresses-Coverity: ("Dead code") > Fixes: 921b68692abb ("xsk: Enable sharing of dma mappings") > Signed-off-by: Alex Dewar Thanks, already applied a fix that was sent earlier [0]. [0] https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git/commit/?id=1d6fd78a213ee3874f46bdce083b7a41d208886d