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 0DBEFC433E0 for ; Thu, 11 Jun 2020 19:09:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D55FF206A4 for ; Thu, 11 Jun 2020 19:09:50 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=web.de header.i=@web.de header.b="XDS3iBpE" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728273AbgFKTJl (ORCPT ); Thu, 11 Jun 2020 15:09:41 -0400 Received: from mout.web.de ([217.72.192.78]:58403 "EHLO mout.web.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726159AbgFKTJk (ORCPT ); Thu, 11 Jun 2020 15:09:40 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=web.de; s=dbaedf251592; t=1591902564; bh=dbIwwHdiMV4teofJdCbf7Y1qEHsQkx0IKl88SrSI/wo=; h=X-UI-Sender-Class:Subject:To:Cc:References:From:Date:In-Reply-To; b=XDS3iBpE3K7mXWT0rZDRMSm0cFM23l9Gtv2zuOeATb5w0fdySOxwG8JScnBbOvqmz ga5qxe+GOiZDOkhzBMFiMwkCz+QuBBQ/UgqOh/V8lZ2z9ejqkENKd16OcTIeyxwEfz HRQm3ZCtoKZ2aIssjr/n2EmXfPDuHl+eVKMGT9n4= X-UI-Sender-Class: c548c8c5-30a9-4db5-a2e7-cb6cb037b8f9 Received: from [192.168.1.2] ([78.49.66.14]) by smtp.web.de (mrweb106 [213.165.67.124]) with ESMTPSA (Nemesis) id 1MzTPW-1ix0nE1PhA-00vKLa; Thu, 11 Jun 2020 21:09:24 +0200 Subject: Re: [PATCH v2 2/2] perf tools: Improve exception handling in two functions of perf events parser To: Chen Wandun , netdev@vger.kernel.org, linux-kernel@vger.kernel.org, bpf@vger.kernel.org Cc: Arnaldo Carvalho de Melo , Cheng Jian , Ingo Molnar , Peter Zijlstra References: <20200611145605.21427-1-chenwandun@huawei.com> <20200611145605.21427-3-chenwandun@huawei.com> From: Markus Elfring Autocrypt: addr=Markus.Elfring@web.de; 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Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.9.0 MIME-Version: 1.0 In-Reply-To: <20200611145605.21427-3-chenwandun@huawei.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-GB Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:8YHVMukXKwtYmbINvs1ODICL/ViARbrtJlTIw3xQBO4k6y08rvF Ze7MA1QiO9gvkEO0O4aQXL8wt94e96KVc8lLIFtU3//HofcRxa16etnlGih7SNdBg/jZrWL pThUHRFRP0FLX1ak/V4N8SneQ4ciYSs2PuUI1mY2MEXaeU9Q7UJ7DbWDVF4szlpesvz11P8 /D0jaIYjpCwvoxnqUxQtw== X-UI-Out-Filterresults: notjunk:1;V03:K0:2Qd2GijSBKA=:P6G5eqoRCj67AI7GF4twfg qfbE5CcbxG15OL0YYhw8P3ta0R+wLOfuzQ2e2HVwQolHzcj3T+63wIXDOrBmkN/7uiuDc/eSV GtTJjso1tJ1RsCrQtF08vlGmGKXcg4gULcKi3hZzpdhKLoOD+WfapcoHX0n5EkziQP/jdbwCL d9iHb7IaXl0F6UEXVoliuCMp/s0DnHgC6eTuTO9lIG9UTre1/U8IdH4yokiS/xK6Jnaen6BQE eeUDYYdFKBDErQiTVX9/KEnBj9d0gZv03mIhekZNzQzMfNGtHyJll2Gw1jzt8oP8UED20V6EO gHVHJmzn+ZR7QzcSafn+0YFB6F7NrbWmCslW0AIjdX2Gw9sz7yTZevgjYn5i0CDVeQmujhb8T KIikq3F17Zw0jW7TN85AT2wwQI9e4TAxpNtT8Mf8ZM2Ja4ReMEWshf9OL7NcWXg7xlw2h2DR5 ETcN/1DMlgObatLAXrGROyC3uhj2U9Fr1Hoea190SBEAGXATIsq158APBlUs7e049918TSskp V3kAgGmZkGKv76ybyTousjicQxPVllr2YgqG1qV4ONb+PCTdF3XV38/74GLlgehTF/BvQhm4R tvpJCneYN6P4TzrtZE16O0aDdLROD2lEhup6o9+xtYgWOy7oaPatBDSNrDczXYg4kfpbeMvYz IcyWpSplWQXHFfdVjirxgj1LjmIUHtxVlHDtbfxyflploYy7g3EXOzES4YEThwEwYsTinSsCm DbdYFhJPalgWKHxaYVQdoE+V2iE+/k4Bn2N3IHI4+RVtJAUU151v5+dDzAJ10/uy5XbWZSGto mESk7YvUkLZmEA4cn2JQtsLZ4hp4bxjCb1SdPFM18l/P5zEwHHNBFRLNPP8i7pRxU2Skcnzst fh3O7w2IssZ77ec4CwI7R6PerbeRCfiDe4LC+tAbtWpDoRmGrDzVR0LoT7zQJR3X+XY2nTkLn l3FExDl0XcJPLiN1ZhNwllB8zbEalD+hF/31GostLD/neITp81SQt5PMJEX3IuMArlQNe4wwP zhtCjaAk+fwkkedA9c5DS9Q5f8DZazTL773X1r2UreEMOSWX0keoz7q0QSOw+1RQmmesWsk8/ v8gSjX+4iQgKB4QjWqJtcuLbia4RDI97qYMHP6AtwvJV38KnNcmPLTe0SW6/wYyh9W7XUNOuF 7FaCs6Dfq3I3ylpsx8sYX7OGf0VpixV/0TxMy2BaMIcLUAtupZ7Hv6WeEL+mDufZ2RczQI0eN j7HivTZmOcrq6j5ug Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > Fix potential memory leak. Function new_term may return error, so > it is need to free memory when the return value is negative. How do you think about a wording variant like the following? Add jump targets so that a configuration object and a duplicated string are released after a call of the function =E2=80=9Cstrdup=E2=80=9D or = =E2=80=9Cnew_term=E2=80=9D failed. Regards, Markus