Received: by 2002:a6b:500f:0:0:0:0:0 with SMTP id e15csp4628059iob; Sun, 8 May 2022 19:47:39 -0700 (PDT) X-Google-Smtp-Source: ABdhPJxEyWZwobWRhmvmIp9DJUUYMZcMRybgFOwTXDkb4oviKeCa5Wn8FQ72VKZez47ej/dEMF+J X-Received: by 2002:a17:903:32c6:b0:15e:c1cc:2405 with SMTP id i6-20020a17090332c600b0015ec1cc2405mr14539696plr.117.1652064459465; Sun, 08 May 2022 19:47:39 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1652064459; cv=none; d=google.com; s=arc-20160816; b=Q0kyNAflXTvqhDX8WU2kivxSVCeOl99zezMrNOQRysKiIEZicwD1Prm/RxZKUZJhM/ 8mbO/W4xRAwbCehwLjR67uehexc0BsUH6LuPXzDWJzfK7ZC40RuBqDYsD8gL2WwbBmaM 6uEkOgMoBjpv0O+eFyW5IHsO7kd9fUyF4KbNg3l2KFmRhR1eKfF7gSP68hbjj3FxqC7d pcc6LHZhe97Spahzbs/b6rdbXnr093foBOXYEHLevLwRTV2S/+weHembNFclaGt8T/70 sd2GnG3DIaEJVRQ23D7Nudy2PejdjrgAW9RoiA0hyVm6ez2K7Bej3S4pLrg1zkD6ejzG 6mVQ== 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:dkim-signature; bh=3ZByRT3W13dRTMM5enzqx7Ee/WWHJauBDk1QFBEZYWw=; b=xTy78I7TX9wGKQWVyKQRtUemDXOAdMbtoBUBJ7nGoEhUe8C+c5J76rI1hyUE7oV3D1 o4IOt+QK/Ln5/8YvvbgW3E3+t4+vP+TJMkzdKnRv89NAA8XhXLHu0LIgBYgo56dByWor 8+CDcR5zc7Omsl1kyKkiGnnDgOwZPst/3eLFZG7+rIe7hTm5niqNo8Hg0sulfypxfyIy o++yk7iNYbepA47OhW6UYNATipZnuabrqte38usDOSeWeyDDCC2mAeJYdYNafwwK+6FB /Js+/ATip2A89dWBqnzq9n6TmbNrq4+9YotlxKRkqdi9j47AXvWy5kcTACxqZxUMQ7OY n/qA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@gmail.com header.s=20210112 header.b=Mg12Qtv0; spf=softfail (google.com: domain of transitioning linux-kernel-owner@vger.kernel.org does not designate 23.128.96.19 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Return-Path: Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net. [23.128.96.19]) by mx.google.com with ESMTPS id 14-20020a630e4e000000b003ab0e9b4af5si12810541pgo.464.2022.05.08.19.47.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 08 May 2022 19:47:39 -0700 (PDT) Received-SPF: softfail (google.com: domain of transitioning linux-kernel-owner@vger.kernel.org does not designate 23.128.96.19 as permitted sender) client-ip=23.128.96.19; Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20210112 header.b=Mg12Qtv0; spf=softfail (google.com: domain of transitioning linux-kernel-owner@vger.kernel.org does not designate 23.128.96.19 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 4C1657CDE6; Sun, 8 May 2022 19:47:27 -0700 (PDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1388437AbiEFDLM (ORCPT + 99 others); Thu, 5 May 2022 23:11:12 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46138 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232443AbiEFDLK (ORCPT ); Thu, 5 May 2022 23:11:10 -0400 Received: from mail-pl1-x641.google.com (mail-pl1-x641.google.com [IPv6:2607:f8b0:4864:20::641]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A696A63514 for ; Thu, 5 May 2022 20:07:29 -0700 (PDT) Received: by mail-pl1-x641.google.com with SMTP id p6so5633508plr.12 for ; Thu, 05 May 2022 20:07:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=3ZByRT3W13dRTMM5enzqx7Ee/WWHJauBDk1QFBEZYWw=; b=Mg12Qtv0ZM0LhpjqHsYBTtzhGoAwMa8SQB5W/EjZKXOFHI04Cx3pwdzkWOeu7ekfn1 BFmxxXu009tb+amypixj4lsdWYm4cdt9mgdehcIk8ClEE+CvKr35yEOs7oDL81vbaNaB MbMJwPjY3+6Wz9dp8K1UXVSsf9YWgXF6s/w9T4X8PqArxD5hOS7qC/u5EVE6yyf/GeSK oRV76j3+mmrzMKGFHntwJhGIUQnDpJ24rZkcdT38AS7/t5OX/aZDiarD9MhO/TCqVW48 /Q5TRi5fffE9yttPFL/j5tJwNUxxYfziQLwVMEEAgZ8NwieshH8Z9jo6/b5GmOn5l+n9 0j/Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=3ZByRT3W13dRTMM5enzqx7Ee/WWHJauBDk1QFBEZYWw=; b=5dEoZoMHeoCVfR8mhtXLcUaeC404ezv30gfc+aac94WsiLbGKUyu6QRzM7Kgm86T4s /N5pdVlW6kTm9XlY5KOJxr8+iNtma1imXd/n7xp9yWozqUKsdK+dW1DYafbxTreN9Izo mBZ4EvL9QNwGixMOYECJTbdCwyCXAzHjKK5dqUdTrw/g9Ep9mdntOuWrLMYaeLrJ/Vkq JmY1xr0rc99etpwOBuHm94a/P/noAbdQgHgZ8MR2Q6mlTILPdBkljlKxEMFYtWj7QY3z K8CD/903Jd2/6cIVWiIMrVMkXMC+0W3qLeoiPQ7DL0YYnUcuRC9orhGJjdInUxGEeNvE EDzA== X-Gm-Message-State: AOAM5314l8Q1yzoWAmVpB1IWGBpekPOKKh56QRJzmarYC8mFqubg/pVD 22TfFTffqZSwivx5ypEDvX0= X-Received: by 2002:a17:902:ecc8:b0:15e:9e46:cb7e with SMTP id a8-20020a170902ecc800b0015e9e46cb7emr1398821plh.111.1651806449179; Thu, 05 May 2022 20:07:29 -0700 (PDT) Received: from localhost ([152.70.90.187]) by smtp.gmail.com with ESMTPSA id y13-20020a170902cacd00b0015e9d4a5d27sm395853pld.23.2022.05.05.20.07.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 05 May 2022 20:07:28 -0700 (PDT) Date: Fri, 6 May 2022 11:07:24 +0800 From: Wang Cheng To: dan.carpenter@oracle.com, paskripkin@gmail.com Cc: linux-staging@lists.linux.dev, linux-kernel@vger.kernel.org Subject: Re: [PATCH] staging: rtl8712: fix uninit-value "data" and "mac" Message-ID: <20220506030724.bqa3braybukvnp7f@ppc.localdomain> References: <20220414141223.qwiznrwgjyywngfg@ppc.localdomain> <20220414154215.GL3293@kadam> <20220415094705.aibh3jr4wzhddmud@ppc.localdomain> <20220415095721.GR3293@kadam> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220415095721.GR3293@kadam> X-Spam-Status: No, score=-1.7 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,RDNS_NONE, SPF_HELO_NONE,T_SCC_BODY_TEXT_LINE autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 22/04/15 12:57PM, Dan Carpenter wrote: > > But in r8712_usbctrl_vendorreq() you really need to make the other > changes I mentioned as well. If you want to do it as a separate patch > that's fine too. > > if (status < 0) > return status; > if (status != len) > return -EREMOTEIO; > > if (reqtype == 0x1) > memcpy(); > > return 0; Hi Dan and Pavel, Sorry for the late reply. A v2 patch series is prepared, in which the uninit-value bug is fixed by adding error checking and initialization. In that case, r8712_usbctrl_vendorreq() is not touched any more. So WDYT to refactor r8712_usbctrl_vendorreq() in another patch with the code Dan mentioned above and usb_control_msg_{recv,send} suggested by Pavel? And for now, the patch series is just confined to fixing uninit-values. The patches will each focus on one thing that is easy to understand. thanks, - w