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=-5.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_PASS 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 EF89CC4360F for ; Fri, 5 Apr 2019 13:16:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id BEBC821852 for ; Fri, 5 Apr 2019 13:16:30 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=web.de header.i=@web.de header.b="YHAZHitV" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730317AbfDENQ3 (ORCPT ); Fri, 5 Apr 2019 09:16:29 -0400 Received: from mout.web.de ([212.227.17.11]:48507 "EHLO mout.web.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726027AbfDENQ3 (ORCPT ); Fri, 5 Apr 2019 09:16:29 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=web.de; s=dbaedf251592; t=1554470156; bh=atzy0QwMzt39s7C/7C5fNGtYD6lVMssAQ9/ipVXo3mU=; h=X-UI-Sender-Class:Cc:References:Subject:To:From:Date:In-Reply-To; b=YHAZHitVXJ+HaRGB1q0nXxM3cXp9UIk/j/z4sdgcu5vUWES4OKE8fdrRpBWpreujw MTZZa/Rx+0Airi60cMxfjnET9LhMyWrrsQoY6lNtK+4j2NL8taWt9jYNJEFtWt+2ng HgPYcax4B2xKZBI1b+G2FsGWa7FOneGIsL54Cwxw= X-UI-Sender-Class: c548c8c5-30a9-4db5-a2e7-cb6cb037b8f9 Received: from [192.168.1.2] ([93.135.156.119]) by smtp.web.de (mrweb103 [213.165.67.124]) with ESMTPSA (Nemesis) id 0MCZlG-1h35J32pl4-009N5c; Fri, 05 Apr 2019 15:15:55 +0200 Cc: UNGLinuxDriver@microchip.com, Alexandre Belloni , Andrew Lunn , Anirudha Sarangi , "David S. Miller" , Florian Fainelli , Kalle Valo , Linus Walleij , Lorenzo Bianconi , Matthias Brugger , Michal Simek , Felix Fietkau , vivien.didelot@gmail.com, John Linn , Yi Wang , linux-kernel@vger.kernel.org References: <1550819742-32155-3-git-send-email-wen.yang99@zte.com.cn> Subject: Re: [PATCH 3/5] mt76: fix a leaked reference by adding a missing of_node_put To: Wen Yang , linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-wireless@vger.kernel.org, netdev@vger.kernel.org From: Markus Elfring Openpgp: preference=signencrypt 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: <799adbb0-23a6-bf20-f22d-4af68e9d0012@web.de> Date: Fri, 5 Apr 2019 15:15:49 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.6.1 MIME-Version: 1.0 In-Reply-To: <1550819742-32155-3-git-send-email-wen.yang99@zte.com.cn> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:W3kNYrBc8AKtykL9Dq230dWPIhCj6tv19ySScl31XMbF3+hwfdH hSvglv2gF6UTpIFPKuj/QQOUVyqwpUwW6lkSJ1kuqvE4cC6jONjaOAl5hlCOFPIzer2ZhTT Ld5ZMGHglvvkcoCRUQupzxQD6zmA8GFFgeaUqGBT59DE6etVMz9Jil+jqloSRBqba24VqXx jqI4InF6M4L5NzA+YTrdg== X-UI-Out-Filterresults: notjunk:1;V03:K0:V1W+fUJIsSc=:E4Q22nIKsPrJezUzeF6XKj m6DeObn2im2InV4mtkGZvXSOOVj5rDsw973keuVM2v7lSXjB7hf2LUuzjm1iCTb9CPWD8f/qi 5sBb4jgEC1E2RRsSKZX/RigVRGII/JEZGvTqkap/PF1q1KVNXdSJKsO+Bih7ZJhp6kyGLyHpr hs0MdADFy7ZA/7kVa/o7ZCzqIWuIh4O02dtpIWYHI8+k1rwZ1zGXCyYLxbMuVIGT2jw08DNpD XnP3sK0Jy0OYB0tLXVMgFYX3LwIVgY8bkdGCjqwzWe/L6fAsyLgY1ApFaiBLhm4t/SviZ3rL8 eGDpF/Upf8RJiTsB5pvpzRmlDJUvp1g0jY/VMXCqyqY7O/HKsDTRLRwlmlBkGXYyPN4pA5HtT YO5W8gSYf4fyyMLqfbmhguYn/67sbmw0wNxDB5WN20RbHs39oVmJTcJNDB4caGlqZ8j0lqHWU m+WWINvK2Wlpooi2iEboXk8DgmnUYTJ7hezzRpSd+YscVmcR0kW2wrPQ0rN0NEvy916g3XCGa Lyzl9cDvY8/1XUEcIwmTRkCNw5aTcbNph2BZhrRGPneDCi8NamJVmwchDndy6Ew/b8Mue9t/9 /ipqHaYJPNfAv5Z/pyANv4/X7/WUD4z6xLhDHkXbGfV9KI2HDrJbM8QMhLpgN9h6ZqUcjJDaT e1WZY/JXOxZmYMW7Qchgr9raa+vCmLDg5+Kn80Daufq3T4weKwyHrJrdJE6pbGQZmJPGTriFK WOR5sJVDYABFUMvHaXGQVeaGE9BGSwOfJdqYKBeZXiNFOf2AaWBD2Acw8sApSUbEF3J5vEQ88 Sm297Gm18uN3zxPb8GRAcKEeROnleBzjRXtQTZfDYTzupXdLG7+Wp9hHWNNwwPjBzrPeYu8VK RqoWfl7Okd0iasB2gVMAmfyAOOFEotJutndLOuvnIdiOPtMIwJy4G7biCCbUBgP3kzU5FY+Zv EMyKg724/jw== Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > @@ -54,22 +54,30 @@ mt76_get_of_eeprom(struct mt76_dev *dev, int len) > part =3D np->name; > > mtd =3D get_mtd_device_nm(part); =E2=80=A6 > + if (retlen < len) { > + ret =3D -EINVAL; > + goto out_put_node; I find a jump to an immediately following source code place unnecessary. Would you like to delete it? > + } > > - return 0; > +out_put_node: > + of_node_put(np); > + return ret; > #else Can another bit of fine-tuning matter here? https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/tree/d= rivers/net/wireless/mediatek/mt76/eeprom.c?id=3D34e022d8b780a03902d82fb399= 7ba7c7b1f40c81#n73 Regards, Markus