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=-2.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 autolearn=no 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 8CFC2C2BA2B for ; Fri, 10 Apr 2020 10:56:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5A20320801 for ; Fri, 10 Apr 2020 10:56:44 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=web.de header.i=@web.de header.b="E7+n06UR" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726594AbgDJK4m (ORCPT ); Fri, 10 Apr 2020 06:56:42 -0400 Received: from mout.web.de ([212.227.17.11]:41369 "EHLO mout.web.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725924AbgDJK4m (ORCPT ); Fri, 10 Apr 2020 06:56:42 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=web.de; s=dbaedf251592; t=1586516187; bh=fXhaD07NjfL91yOXDHRZNEEr5NaybQZwWj/cYtVKaAc=; h=X-UI-Sender-Class:Subject:To:Cc:References:From:Date:In-Reply-To; b=E7+n06URj96WDpmyDK3LfmVGzuxk09r0cv1Q1etwWrDl+mYMsOB/5ChW0XvUIuvEZ 5vjvEpfaqqjSGMYWnkdhWG7NVYyKmsNs3lcuxnklcWFUUFFp4Cd/rw5mw9zlEuWxiZ nmTm+uEIgi9eCXBSP8bl/G4F4bmJgSwRuidFFZ2g= X-UI-Sender-Class: c548c8c5-30a9-4db5-a2e7-cb6cb037b8f9 Received: from [192.168.1.3] ([78.48.110.107]) by smtp.web.de (mrweb101 [213.165.67.124]) with ESMTPSA (Nemesis) id 0M41Bm-1j5se90ySA-00rXpN; Fri, 10 Apr 2020 12:56:27 +0200 Subject: Re: drm/tve200: Checking for a failed platform_get_irq() call in tve200_probe() To: Sam Ravnborg , Linus Walleij , dri-devel@lists.freedesktop.org Cc: kernel-janitors@vger.kernel.org, LKML , Daniel Vetter , David Airlie , Tang Bin References: <0263f4fb-c349-7651-b590-8722cdd30c85@web.de> <20200410101831.GA27723@ravnborg.org> From: Markus Elfring Autocrypt: addr=Markus.Elfring@web.de; 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Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.6.0 MIME-Version: 1.0 In-Reply-To: <20200410101831.GA27723@ravnborg.org> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:C/jrja9K2QgghT7CCmZZh7za7qQGU/Lep6p/xvtDn+QNIDIBWI/ bn2Hrp3KtYDnliCSyLnaOe56I1z8IMrzhQfikOM3tJinmMEFA8Rn8TFfElR111FYdKAgyrC ciWaYnARttCLa++GYym0LjCe1sGFJt/Amsj+RjhNSBG/p2iUPb/v6rJ5lHnSVF3A4ycacDJ ebn9jBSjcR4AvGBG8mdYw== X-UI-Out-Filterresults: notjunk:1;V03:K0:6e2dTCMQjmQ=:b1/6dD52FnISJ5L11D1ORW lHvxfXQckmXVXirdiuJTDpsvQh0ZkN5xHVFvG2sfjZf5rsVeGhQdZ/wkfNzLnX9v0a0HHLqO4 9AUxr1c96dL4JagLdbSw+A1MQW0N5BRmrG6RZsg+/5H9aCpwffDzHsYwGdRbaoy2jM8GIwc8+ 3cbUSYTJB6LMXoQiJ0ocj2zjOg61AwxSTvRDGGrQYsulBEob8MriIl+j15mkAGUtwqiElqk53 1OmIWI/ZhPI5sDB/V+Ck/CfoY2P/oGuZ6J88cR1A5clhDNs7FV9cPbMc3OAiL+oDM0VkofR7b 1q9Xm65gFmHBVhlzmkECakXDsY3bCVMnJIROqkMgfDDi1AOJ65T5+jk+/NjJamFLrKIhMatGj 2KnSGeJ3nDfWZGFl5WkkmvzhLYe9fW4TH2ZlVFMwYRdjs1ISrRVn0oEDl027aCkXtCckt0jA2 0vrr1ZuG93BlnAtFJEu0MVTPJMDW9Td80wubZUYjEYtH65xS1HzcRMPggLJGRfKSzYVjVgO0S wOiBjaQatidcTvYjlaOblYw/bhzvNKfLcUoc6fCmhWhGIAIj2OVKU1ypKqif3xm9Xl/Jy/rVV aXmLHAdsL5Ag+8x2QJd8J/gAboh9H0HIq5wBmR64G05dyn6eJpX9KxFIBjXw9GoqCnPyBlKRI NU0qo607cqnE8cjiBLNbVpRnHJkai6Vs98t0NFCoO5bdZHZQlLSqbF0YrkF0Ezrr+6We1FXdC h/ByV+ykNVoCYqKeVcCA4cq6WbAW2f5kZjIiMrciWvt4z1xHmAtJWlq4VczzRyLgRiMzJhV9R QAOFit41IhR9pc5JF3uJ+Ofa1JnP4TKpnIlieiU950kipIM/wfancZj6o/Euksy3U34MJIsWM Jr5iDDWWB0moAsgnAdzcvS7WbZMOSYrllpthm6/rgnM5d2WjER6MRb0nHa9rBMJOUuvLEhK86 5b/yWVu/U8oKlRIOA++xsmCrQzNLJo6vYrtChzmUuNXTO5xC9PJT0NE8u4lyGQZmJ5/mS+bhb nlbjmWlYIlHU4whb8Jd/g9CsBLhuth0C4LiUwOudnfmld4K1nzuiKxpaEfoW1PMyUqsOfORVg ErUnNvA0wjois3gJGT/KFzoV+jf8DdxevCWqyGbpcbeKVIXSDfEXIrlyArfK/SdK/GUGvpGhS 9LbHiwzvkKtq7k21vrsYEP41FM5w5921QEa/yPq63W2BgM6qM76VpZpYXJ51MqZdcLjNYrW+D BCkS1SgfXcryWezl4 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > The right way to check for errors is to check if the return value is > less than 0. Thanks for your constructive feedback. I was unsure if I noticed another programming mistake. > Could you please audit all uses of platform_get_irq() in drivers/gpu/ I found 20 source files from the software =E2=80=9CLinux next-20200408=E2= =80=9D which seem to contain similar update candidates. Would you like to clarify any extensions for improved applications of scripts with the semantic patch language (Coccinelle software) for corresponding analysis and transformation purposes? > and send a series of patches, one for each driver. Do other contributors know the affected software module better than me? Regards, Markus