Received: by 2002:a25:7ec1:0:0:0:0:0 with SMTP id z184csp650579ybc; Tue, 19 Nov 2019 07:08:35 -0800 (PST) X-Google-Smtp-Source: APXvYqzCnDOL3R3zyCALywGA1kGn4Fpx0kVeuaYQJ5IpzZCJtMMGYYihL6X39WAUIX0kbRoo8Pym X-Received: by 2002:a2e:894b:: with SMTP id b11mr4418314ljk.118.1574176115466; Tue, 19 Nov 2019 07:08:35 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1574176115; cv=none; d=google.com; s=arc-20160816; b=iNAFbM33UzWJ2mscuLQEEr0iLR26C6307xEjtEtHzTehCXs0uFmkTyWKVWYq5jBRlX NYwF/xNKJ4Fi1Rxqv4LbKZbM7MEUGSsEpJfvJXt0CryXY4zBK7dqb0dewyBPJXXZsTFM SSIuij3Sf/Yj8ctr6bacE07flZxQ/+QSwr43en3GhbEVhOLHESgnAmEak3a1g72PLQhB WNdu8uE8A8GbTVDKk0AKDAho+ASV8iy1ZZJPkdMKk08GvuwyCtzorWJjep6tzYQdannj 3C7P7v5iUXbRKaavVm7GjUEF98sPyF5wkzeusuxDLjq7SAgGVwL7Ezs3u9WDjyyeoC4t d0Dg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding :content-language:in-reply-to:mime-version:user-agent:date :message-id:autocrypt:from:references:cc:to:subject:dkim-signature; bh=3A94SQCHTFumg032hiqajeF/I3D45HuhQhqlqK18xRk=; b=e2g+cCc+EjzgttxRESiwzm93DopwT/T/x4gDvuL1gNyaNhD7xtZJKqUzHko9SQ+BG6 C9/cfvz5Mpnl9IQs1CCvXMZ2MfJr+bB8HpUto9OZlQdIhsl/YVbGsfWOuAnXVzKHF8gp bvSvx73wXlrOYLdiH/oKuR9It91D8dYCcpmkt71RXTnHvF5x80tiX9mLx/1jaV7HNllF 2tszJUJy2scn8XZn7uNgZIcodKSOkipiyDkX7+vARKplSEAqGdUw6KSsp3PC+Tbtiw93 TIsUubcCPtnFsqQ9ZKDkk/3BBfImGE4omxj6iY9Tb1yjPdBwzF/w3jBv8mFG2AWRVQNF lmrQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@web.de header.s=dbaedf251592 header.b=lsUVirKR; 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 d30si16293462edj.289.2019.11.19.07.08.02; Tue, 19 Nov 2019 07:08:35 -0800 (PST) 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=lsUVirKR; 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 S1728152AbfKSPGh (ORCPT + 99 others); Tue, 19 Nov 2019 10:06:37 -0500 Received: from mout.web.de ([217.72.192.78]:53845 "EHLO mout.web.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727352AbfKSPGh (ORCPT ); Tue, 19 Nov 2019 10:06:37 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=web.de; s=dbaedf251592; t=1574175980; bh=0zo7dDCKLAG/971IKZsBHSalBSXIX3bS03JGhfTsm+8=; h=X-UI-Sender-Class:Subject:To:Cc:References:From:Date:In-Reply-To; b=lsUVirKRFb2klkSrAhBgEtS5KmRGHQJqv90Ouqh7mHWcd6sNDP6vCkX89gQBXT7jr 0zOHZNaCyKPgdh2hoNz39Q/U1vQaoLtd1j6k33R9kW1txDR0TFRoSxZran4a1PTs+W w0Qj+TLXgBz1ung5rWMSLuyfQuFTrl+lSt5QcjM8= X-UI-Sender-Class: c548c8c5-30a9-4db5-a2e7-cb6cb037b8f9 Received: from [192.168.1.3] ([2.243.93.164]) by smtp.web.de (mrweb101 [213.165.67.124]) with ESMTPSA (Nemesis) id 0LhvyA-1i31WI2VPu-00n7DX; Tue, 19 Nov 2019 16:06:20 +0100 Subject: Re: [PATCH v3 10/13] exfat: add nls operations To: Namjae Jeon , linux-fsdevel@vger.kernel.org Cc: linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org, Christoph Hellwig , Daniel Wagner , Greg Kroah-Hartman , Sungjong Seo , =?UTF-8?Q?Valdis_Kl=c4=93tnieks?= , linkinjeon@gmail.com References: <20191119093718.3501-1-namjae.jeon@samsung.com> <20191119093718.3501-11-namjae.jeon@samsung.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: <705cb02b-7707-af52-c2b5-70660debc619@web.de> Date: Tue, 19 Nov 2019 16:06:17 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.2.2 MIME-Version: 1.0 In-Reply-To: <20191119093718.3501-11-namjae.jeon@samsung.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:a+CKAml7B0/J/jY8wDGOYDt4BF9yEXk82djMmrglT4v/2w80zx6 8yJlQTkxYNm2noHcVhZYbaStojM4qHlJQjSjk13Bd4pln+1rB/H7kCo61WhcXISps7rWGnV l9ZN3NjmsPkJMGz8ol6mzxiufnf+uRxiMQjtVHj0f0NwAveNlRZ57b1Ul0Ka4O1eVsp7Jl0 xzQDfUdcONsTT9RPeAl6A== X-Spam-Flag: NO X-UI-Out-Filterresults: notjunk:1;V03:K0:hJOtlFpI/Ms=:nXdX6fBbKgf5iGIRtchLJo vYB3hsPZJD5bi+C4IbuzJg9kQpPVA83QdpaH0mQHHeewF8+ajS6r6i7B5uqXNXJ0lMfuoAkqk 8VvGoW7QUDPocxN98q+V7s3Dplzf3f5T7NZTgGkrC51TJJyVB3aXvn33iTE/aU4dFQReJMygd F2HUubYFvRqzO/6nu3nga4J8hQFSNXTyrDNlV7k/bHFIJgZUVZSwL10wTy12bmCyfLcXp6Z2k LA2sBLKhMOCGgVPxQ7YxR8GQONKNMV8L7qRRR/dMuNvjDQrZXrIEpYqYCZ+N5WNAUB5/zBnpN w0e6L/SZGSDYPwav76Zn5AjTiSyIs31o90DCks+8ES2rZi2xnanIOZJvqfR2tyW7D+E4otaHy Twmz2S/+rlv2YTR+YZD1d7X9aB4X+r1iQh1P5gNX2p9Sm56df54GPKVxYkwYHITNJRx4DQII4 wJQNenU3ezdmLTB93CgcpGfhyPPMGzhy28dKNSxemj4bSyf6/xmOXxdp16wllWppVuSUWffiF poijsKeDgGV9J9u3jPtsBHbtQTryOPGp4jHgZf0lPD4J1xb6tBBmyUZwZPCDbb60tFntAKvwi ifEelxGn/EpIlA1xnUN1VnBApfE1B6wHx2PdMtLqgYZcRIJmjsoJXAR/qaVHhZjV03hzXeNxq PlmPQQmSNHGTwFVX3JSP1qs0e2rZpNHa7khk1IPKfd02zVbzuOl17WNDW2wtQQwvrqpJtSz7v a5cHIxepSGwFF2ETB7XM5a5mNxqKIVyVf1CjJkXW1mKlR6RIgKo5/xosaYnExxdmPRl4x/k8H hrDOY2rnDJW6BrS2HU1urb/wIBf5qQWA2OMZVbEyPFeoFJ+PmnKJz65F7xwW1W6Vpu77cz551 MA487lg9mpolhB0e5oVIBUojJ9TTYVqtFy5KGLPCzbUV0VZWLaLYQ6k+3/6Omo7aO9As2gHLD GyGp7quaAaZ6zfh64JBPq19c/fFYGu0dLQnCv4pi7gq6sjooZF6ifU8c90wl9K+4SDxw/CQ2O jSWrp9hO1Q+Nib8s5sfDmCMtXJh4hsnwzU/zI5Nw+kcqzBCuGp+NbQECVSS1GwWB/kedDZc7L lXKOp1eOnSXn682FFF7qZXlZxmihMGMij9jheMmYlDj0OHy/wbVMUY6p+0K09GbhiHR5Hr7Z3 xnTeDMZV79PI2p8MThvgX1bH5Ctgc68idsjt9v7LXw4BywOI6cconBevLAzEDWQB6u+XoYX28 /cp8UqIA+5iKVS+kuKOpAmvIDAX9Q/MYb7xThghqR6/UDegJdlj9hqR1qUnQ= Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org =E2=80=A6 > +++ b/fs/exfat/nls.c =E2=80=A6 > +static int exfat_load_upcase_table(struct super_block *sb, > + sector_t sector, unsigned long long num_sectors, > + unsigned int utbl_checksum) > +{ =E2=80=A6 > +error: > + if (bh) > + brelse(bh); I am informed in the way that this function tolerates the passing of null pointers. https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/in= clude/linux/buffer_head.h?id=3Daf42d3466bdc8f39806b26f593604fdc54140bcb#n2= 92 https://elixir.bootlin.com/linux/v5.4-rc8/source/include/linux/buffer_head= .h#L292 Thus I suggest to omit the extra pointer check also at similar places. Can the label =E2=80=9Crelease_bh=E2=80=9D be more helpful? Regards, Markus