Received: by 2002:a25:824b:0:0:0:0:0 with SMTP id d11csp3512629ybn; Fri, 27 Sep 2019 07:27:40 -0700 (PDT) X-Google-Smtp-Source: APXvYqzingnuVIKik75QrNjyA6yh5VojpodyajcLOB4YmbVwCTZQZPpSuCveGM3d8JxdGhyeFyGr X-Received: by 2002:a17:906:f846:: with SMTP id ks6mr8202225ejb.192.1569594460411; Fri, 27 Sep 2019 07:27:40 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1569594460; cv=none; d=google.com; s=arc-20160816; b=wKp2v5BPvAKrdRj1uGIzYegKN2WTTdHkJIdaQnrSkx5twy163g5XDyf6cUoz7/qmTB 0UtxqxvADayIPUS+3tCzSMG8HtmF2L5UbBaO1/gTagT0hvnc8/PevIry2EQUw3IiIZZr Q50Y2fFICllwzE5KbztWMclo0fWRwY8mtZbQLK/gUeJWdy7kKoBwypITMRqq2e8lOK67 voS5PTanTv3kNVIFlwSgmOcloW84L6nN9It+SC+vZulw7bKgYVmNy7BBLdPS3FoX4oFg Wzk+4iNBEJbkPgw8a++Z6/pR1dnpXLrvUPVCmcrxa51I5ANdqB1qRVQdFVKgnv5vUgNV 8QGQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-language:in-reply-to:mime-version :user-agent:date:message-id:autocrypt:from:to:subject:references:cc :dkim-signature; bh=x17qWf4Bz25weLPOubdxvPsz3Ma8ZZZOapyBV9inc4w=; b=0Yzlfb6TDGWMbgin9uL5qejWycGCun/Mfo6mzZKsETJO12m8pRJEBFaIUY9d2+zOFn 5Ur5At4agEFn1o3dksZF63+p2KuDvXdrFzu0CO9JaLvp/taZMQOCW3x80v0oDgfcfbU9 Qs+3KNlNYcADVlCdatrMqblBuzzr9g+g+I7UNsKludbMX7aJS9Y3+WoJbuf8eB185lHf ts/NtUHPNoCcTc5nAfsYLhYjS5HSZEoWFr+pfC44kYv92OjTkG3FI01e7XsiRf4Fht8L H9wGJpycNYm9igLfKb/88t2inpFgOb/MHSU47eULm5BO0XFi+/MwUWmGuz1vXd3tm3f6 crYA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@web.de header.s=dbaedf251592 header.b=YgsDhm59; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id v8si2835460eju.333.2019.09.27.07.27.15; Fri, 27 Sep 2019 07:27:40 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@web.de header.s=dbaedf251592 header.b=YgsDhm59; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727913AbfI0O0p (ORCPT + 99 others); Fri, 27 Sep 2019 10:26:45 -0400 Received: from mout.web.de ([212.227.15.4]:36607 "EHLO mout.web.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727859AbfI0O0o (ORCPT ); Fri, 27 Sep 2019 10:26:44 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=web.de; s=dbaedf251592; t=1569594390; bh=tn9PVg9E/PLEvgmiwwqgXnvlHelynp+BqoPiHXcL2SU=; h=X-UI-Sender-Class:Cc:References:Subject:To:From:Date:In-Reply-To; b=YgsDhm59dKhKQFr9VUp8nA2ABSk9zlGnq6I8T6IygMz9VhSub5qSfRhnPBi00p4R8 S9zgQL1vGg0ZCmF+cHxCU4wZG0zax1EaRA85Yv/YLfKCZRxYk4jeIAzbySK/Fq2weo nDklWKToFpnQXJk/F7/EsHHwfSW2zQV8Lolk+KsQ= X-UI-Sender-Class: c548c8c5-30a9-4db5-a2e7-cb6cb037b8f9 Received: from [192.168.1.2] ([93.133.191.8]) by smtp.web.de (mrweb001 [213.165.67.108]) with ESMTPSA (Nemesis) id 0LpwMZ-1hhntp0cX1-00fg63; Fri, 27 Sep 2019 16:26:30 +0200 Cc: Navid Emamdoost , Kangjie Lu , Stephen A McCamant , "David S. Miller" , Frederik Lotter , John Hurley , Pieter Jansen van Vuuren , Simon Horman , linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org References: <20190925182405.31287-1-navid.emamdoost@gmail.com> Subject: Re: [PATCH] nfp: flower: prevent memory leak in nfp_flower_spawn_phy_reprs To: Navid Emamdoost , Jakub Kicinski , netdev@vger.kernel.org, oss-drivers@netronome.com From: Markus Elfring Autocrypt: addr=Markus.Elfring@web.de; prefer-encrypt=mutual; keydata= mQINBFg2+xABEADBJW2hoUoFXVFWTeKbqqif8VjszdMkriilx90WB5c0ddWQX14h6w5bT/A8 +v43YoGpDNyhgA0w9CEhuwfZrE91GocMtjLO67TAc2i2nxMc/FJRDI0OemO4VJ9RwID6ltwt mpVJgXGKkNJ1ey+QOXouzlErVvE2fRh+KXXN1Q7fSmTJlAW9XJYHS3BDHb0uRpymRSX3O+E2 lA87C7R8qAigPDZi6Z7UmwIA83ZMKXQ5stA0lhPyYgQcM7fh7V4ZYhnR0I5/qkUoxKpqaYLp YHBczVP+Zx/zHOM0KQphOMbU7X3c1pmMruoe6ti9uZzqZSLsF+NKXFEPBS665tQr66HJvZvY GMDlntZFAZ6xQvCC1r3MGoxEC1tuEa24vPCC9RZ9wk2sY5Csbva0WwYv3WKRZZBv8eIhGMxs rcpeGShRFyZ/0BYO53wZAPV1pEhGLLxd8eLN/nEWjJE0ejakPC1H/mt5F+yQBJAzz9JzbToU 5jKLu0SugNI18MspJut8AiA1M44CIWrNHXvWsQ+nnBKHDHHYZu7MoXlOmB32ndsfPthR3GSv jN7YD4Ad724H8fhRijmC1+RpuSce7w2JLj5cYj4MlccmNb8YUxsE8brY2WkXQYS8Ivse39MX BE66MQN0r5DQ6oqgoJ4gHIVBUv/ZwgcmUNS5gQkNCFA0dWXznQARAQABtCZNYXJrdXMgRWxm cmluZyA8TWFya3VzLkVsZnJpbmdAd2ViLmRlPokCVAQTAQgAPhYhBHDP0hzibeXjwQ/ITuU9 Figxg9azBQJYNvsQAhsjBQkJZgGABQsJCAcCBhUICQoLAgQWAgMBAh4BAheAAAoJEOU9Figx g9azcyMP/iVihZkZ4VyH3/wlV3nRiXvSreqg+pGPI3c8J6DjP9zvz7QHN35zWM++1yNek7Ar OVXwuKBo18ASlYzZPTFJZwQQdkZSV+atwIzG3US50ZZ4p7VyUuDuQQVVqFlaf6qZOkwHSnk+ CeGxlDz1POSHY17VbJG2CzPuqMfgBtqIU1dODFLpFq4oIAwEOG6fxRa59qbsTLXxyw+PzRaR LIjVOit28raM83Efk07JKow8URb4u1n7k9RGAcnsM5/WMLRbDYjWTx0lJ2WO9zYwPgRykhn2 sOyJVXk9xVESGTwEPbTtfHM+4x0n0gC6GzfTMvwvZ9G6xoM0S4/+lgbaaa9t5tT/PrsvJiob kfqDrPbmSwr2G5mHnSM9M7B+w8odjmQFOwAjfcxoVIHxC4Cl/GAAKsX3KNKTspCHR0Yag78w i8duH/eEd4tB8twcqCi3aCgWoIrhjNS0myusmuA89kAWFFW5z26qNCOefovCx8drdMXQfMYv g5lRk821ZCNBosfRUvcMXoY6lTwHLIDrEfkJQtjxfdTlWQdwr0mM5ye7vd83AManSQwutgpI q+wE8CNY2VN9xAlE7OhcmWXlnAw3MJLW863SXdGlnkA3N+U4BoKQSIToGuXARQ14IMNvfeKX NphLPpUUnUNdfxAHu/S3tPTc/E/oePbHo794dnEm57LuuQINBFg2+xABEADZg/T+4o5qj4cw nd0G5pFy7ACxk28mSrLuva9tyzqPgRZ2bdPiwNXJUvBg1es2u81urekeUvGvnERB/TKekp25 4wU3I2lEhIXj5NVdLc6eU5czZQs4YEZbu1U5iqhhZmKhlLrhLlZv2whLOXRlLwi4jAzXIZAu 76mT813jbczl2dwxFxcT8XRzk9+dwzNTdOg75683uinMgskiiul+dzd6sumdOhRZR7YBT+xC wzfykOgBKnzfFscMwKR0iuHNB+VdEnZw80XGZi4N1ku81DHxmo2HG3icg7CwO1ih2jx8ik0r riIyMhJrTXgR1hF6kQnX7p2mXe6K0s8tQFK0ZZmYpZuGYYsV05OvU8yqrRVL/GYvy4Xgplm3 DuMuC7/A9/BfmxZVEPAS1gW6QQ8vSO4zf60zREKoSNYeiv+tURM2KOEj8tCMZN3k3sNASfoG fMvTvOjT0yzMbJsI1jwLwy5uA2JVdSLoWzBD8awZ2X/eCU9YDZeGuWmxzIHvkuMj8FfX8cK/ 2m437UA877eqmcgiEy/3B7XeHUipOL83gjfq4ETzVmxVswkVvZvR6j2blQVr+MhCZPq83Ota xNB7QptPxJuNRZ49gtT6uQkyGI+2daXqkj/Mot5tKxNKtM1Vbr/3b+AEMA7qLz7QjhgGJcie qp4b0gELjY1Oe9dBAXMiDwARAQABiQI8BBgBCAAmFiEEcM/SHOJt5ePBD8hO5T0WKDGD1rMF Alg2+xACGwwFCQlmAYAACgkQ5T0WKDGD1rOYSw/+P6fYSZjTJDAl9XNfXRjRRyJSfaw6N1pA Ahuu0MIa3djFRuFCrAHUaaFZf5V2iW5xhGnrhDwE1Ksf7tlstSne/G0a+Ef7vhUyeTn6U/0m +/BrsCsBUXhqeNuraGUtaleatQijXfuemUwgB+mE3B0SobE601XLo6MYIhPh8MG32MKO5kOY hB5jzyor7WoN3ETVNQoGgMzPVWIRElwpcXr+yGoTLAOpG7nkAUBBj9n9TPpSdt/npfok9ZfL /Q+ranrxb2Cy4tvOPxeVfR58XveX85ICrW9VHPVq9sJf/a24bMm6+qEg1V/G7u/AM3fM8U2m tdrTqOrfxklZ7beppGKzC1/WLrcr072vrdiN0icyOHQlfWmaPv0pUnW3AwtiMYngT96BevfA qlwaymjPTvH+cTXScnbydfOQW8220JQwykUe+sHRZfAF5TS2YCkQvsyf7vIpSqo/ttDk4+xc Z/wsLiWTgKlih2QYULvW61XU+mWsK8+ZlYUrRMpkauN4CJ5yTpvp+Orcz5KixHQmc5tbkLWf x0n1QFc1xxJhbzN+r9djSGGN/5IBDfUqSANC8cWzHpWaHmSuU3JSAMB/N+yQjIad2ztTckZY pwT6oxng29LzZspTYUEzMz3wK2jQHw+U66qBFk8whA7B2uAU1QdGyPgahLYSOa4XAEGb6wbI FEE= Message-ID: <95ee54a0-a5ff-a9f0-0d87-471e0f1f790c@web.de> Date: Fri, 27 Sep 2019 16:26:28 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.1.1 MIME-Version: 1.0 In-Reply-To: <20190925182405.31287-1-navid.emamdoost@gmail.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US X-Provags-ID: V03:K1:ft+zKUE+sK3aNCGLB5RhDOFVPiCMUg/6fPQMt+VV2vC3V4knNZj zQ15PFAHai252MmMsBIbyPOi3m8EWx57pgrHO0lXSu9UW9SLHPsxRLxwkQp7op5kP0cF/1h BkUTrfbv0wek2Lhc5bw2bmPrhtOlhV+RJpd4YVghBt3A6yKnrQAbkv4UjWplvstmPkOXzsA ZccEoYT+nvxbooygis9xQ== X-Spam-Flag: NO X-UI-Out-Filterresults: notjunk:1;V03:K0:Piojxsa/rho=:xgrVQyOodkPmvqUNXG8FY2 SIhjE0mSyhkBmzbUdZ3/Ugy+XtkqluRY3IlQoOas+gUn9oN19W3YMdFjluYSabW/e8nVbY5W/ 68FuzO720GcmMSStt3qWTqGp24NKGJvWi8K/6lOTcQ0HuMXeHyLkW0/fJfmKOe1/KTdSkNHIo 5f8T4a++NqYN18wnsX4QRP7HJy+tU0szkMrWk8iKaZ6FlH+IRW7nkZiSzhRc3F5Qli44Dx75r 1ybwHwmI8NMA67m6QKYTIICG+qIp6kieRqaFE9w1A3N6KxInpX1kDjLTWKibaLFXZqsRCrfkD ty/R8Q83YQrjLrIA8SZCsc14Ke/Vw20H/VOB3uhJByjKMRpO6Yj3HHrsbmi1sHddmi6Tnv2Wn i+jxoTQvEgTX/eIjOziqDx2LVEjDML56Hdq+1Y+p6bZYkrgJYjIUB2yLCSrvvEjrCpI01jA0Y k9VoFkFNUZX5hzTmauFxS2p75iuEbBzcWk3RwO6R2KbTCzExML8Exi0KEJ/bmnMtOWyJdBIBr 5KNPVYCPXPT9xhkM77xEEIr3egF+LjIE2IHAMRlRSTEiuHULbR00+ga5V2WWT0TFbHi9QCr9J +6JA59hMtxxpbc8bVXX5WPoVvOuAApzMHw5DEs5hf69Q2Z/V2N6c4Z8W2yLD7JPMaMBdNN3zA 8GAftTnR69f8fRSPIEoGZFTQgjKfshdVum7vb/NYOv5A1cvieQH13NLyMgcYh8fBZDu79IZm8 a3WmPvWOk/8MSl4gbKarX8DQg8EKkCMGeKdvmhcrFwYovdfURhYFyciUTjEriDQDMvY26ZKi7 WH3oJnErubdNvu9vJo1MZsNHJCaZhPA1srhbAH2iWTDpczvVrIRoCdIpwBTRLUUHcwVQKNPJb MFrZnlMg6ojDbvNmUUZt4FU+9BQD+18dQSngYNN1jMiKAzG62/DsvW2lEFvgTqtHP+/g7efW9 Zmy1ZrtdNDGpE9liHTr6L6+47fKToPJUsgBoQu16y6FQenvmM+iXiJ1LJkYnA7QkeVF7aQbki HZMAA4cLO7H0c6hUWQwGmGSGnDSxW/WGcuasZtesPxT8DgK3NSK0gBig4fY9FCFdmfYRmuN5P xAFD4kZVQi6sBCA0BziIMP/XBQGci4RAsd9xYD88/pgjWTVdvHNASa0Oe2T61TtGusPQWiYfa 2XjQVz3FCQp8oTOVt2HPRsUew2VPTWy0MMLCyauKnEw4BuyO6xDC3GF3sE4jKHWHLiIv1f2k2 Ok53WoL+CRVphS3XptQn3x86T4jwegy60cQHmI22jHkCVxj45gWCWLyb1prA= Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > In nfp_flower_spawn_phy_reprs, in the for loop over eth_tbl if any of > intermediate allocations or initializations fail memory is leaked. > requiered releases are added. I suggest to improve also this change description. > @@ -542,6 +545,7 @@ nfp_flower_spawn_phy_reprs(struct nfp_app *app, struct nfp_flower_priv *priv) > err = nfp_repr_init(app, repr, > cmsg_port_id, port, priv->nn->dp.netdev); > if (err) { > + kfree(repr_priv); > nfp_port_free(port); > nfp_repr_free(repr); > goto err_reprs_clean; How do you think about to move common exception handling code to the end of this function implementation by adding jump targets? Regards, Markus