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[23.128.96.18]) by mx.google.com with ESMTP id ss10si5578425ejb.103.2020.04.30.04.57.58; Thu, 30 Apr 2020 04:58:22 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@web.de header.s=dbaedf251592 header.b="mhEJE/Aa"; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726684AbgD3L4j (ORCPT + 99 others); Thu, 30 Apr 2020 07:56:39 -0400 Received: from mout.web.de ([212.227.15.3]:52751 "EHLO mout.web.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726127AbgD3L4i (ORCPT ); Thu, 30 Apr 2020 07:56:38 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=web.de; s=dbaedf251592; t=1588247784; bh=VGV4Fw2sNEq8D8bF6x0dfHewG3Zs/VQNCW6HfTq7oas=; h=X-UI-Sender-Class:To:Cc:Subject:From:Date; b=mhEJE/AaHsHvaVu9RVBT9dwFLjcJo5t6iZUYYxWJbGXHUH1zpxE91K8oHzdVMO7Jh YQjbXIUASjX6mioywyIoxm6LNfoDqJlbBidHJqKeeluAMwnHGNeji7J3z2t9HVLeRx 0fZM2W+fcniXTuJ8ErOJL/+v2tGFT6RUvAUU5xQw= X-UI-Sender-Class: c548c8c5-30a9-4db5-a2e7-cb6cb037b8f9 Received: from [192.168.1.2] ([93.131.175.216]) by smtp.web.de (mrweb003 [213.165.67.108]) with ESMTPSA (Nemesis) id 0MOAmi-1jZbS82lIC-005aTk; Thu, 30 Apr 2020 13:56:24 +0200 To: Wei Yongjun , dri-devel@lists.freedesktop.org Cc: kernel-janitors@vger.kernel.org, linux-kernel@vger.kernel.org, Daniel Vetter , David Airlie , Linus Walleij Subject: Re: [PATCH v2] drm/mcde: dsi: Fix return value check in mcde_dsi_bind() 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: <7be53832-592b-7837-0688-0f1fb98673fb@web.de> Date: Thu, 30 Apr 2020 13:56:23 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.7.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Language: en-GB Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:4J40lGAYvX/cTfCr1dsT0eIK1GlOrCIKAXj9itU3RAOIioP5XbD 4jFJOy2ZpHULqeuW5iN9hnGzP/lcHzAPKqlpnL0YuFjdKFUh25E4cYfmBvzbE+9wpYiHicR zUoaFWNwdpl8cuFDmC7MuDMn+qBe7YR3V9N+nhQtusfUfRk+wSwal4nduUEgfx2R24iF6mJ ArZBvbZJrpklK6NXY7z8w== X-Spam-Flag: NO X-UI-Out-Filterresults: notjunk:1;V03:K0:JGOSLXAgGyU=:so3VXLOqyBtcHkr1e26Yr1 ww/clhOLJCLxFFbX4coUnB5Z8zjijXCW/eE6AoPczB8hqDmUY25c8/ZbwKtbQ4kPvC0alEEUy ZKGtPc58+j00duflmc5DcYDCgeroGsR47Rp9GhYv74Ujv7Q9gpSrWLcTmHaYgNCFeMt8+9xrI lHqFviTsE1E6vFkY1kTAd4q9SgjKPjtWIId3SOIsZ4n9GroPjhjDvCdENbBk67Hbs2ppHyXWX cvMZdgumvrfOJ3peHpWdxXdR2HqWxTjeShwNsXNWqC3KNe2IbCd2NNfWKGKItMxHqEdVszkC2 t5xtoW4rvsUMkbT0qIKISHasNPAOraledKZdFKjZ2xxdQVDagPordKvEZcReFJ1tJw5YSfX1c HVxSPRDo98S/nSj2EvtS+jAyk9HrK8V3vhklsdt3fEdwEOvLjVkSrjF/UtCjReFr1l5ZWfsEM 1Fmqo27FgpQy/WWRT26seg5sRYJoyomTr2xXCrlEAXWRsR3iqXvVYFSZYABJTtUraHFY7wPEH kIe7mdB4Vygxs5jTZlejoFOhnCFFtbQgZFM8MNtOjqYvwLbSKwI/VayHovdt0/vvCDnIYjwAS 2LV5GtPW4IvGjcMs7WjppET6TS9GU3DGFxrusF5OJOZ6qq6j2udk3j/IWGkP7yrr6mbK33M4Y phiRvhlqp/xMps3dB9lUhmfFc4AzBMEZ1sv+il4fFkYBW++5tXGiHxGLH5zWyd2AUpnjUkqRd JJWpmGBv5yk96n2IJbOeAcDDSPhFlfpGgDamqjym7etW5eSgutyHwGl3U+N2BF4QI4PVJHAyN EE9lJlZqxjkJ/S5+tt22RgjdwCkeZ4BHMliCwb5wJYH695OyO6tsOdp4YJB8eRjHl/kbiLOvU 67mjToIfEIbKKJUISMiey1t62eANlqDh8q20jfwuq14lCZvbeJrk12EDU15Pw8h1E3Xs7OgJu x5zSCSxR+9gEJJIddpWYvAgbYBA/i4SnVHMbAcnKRuGxExOa/c2pFKWJbhsGEXfsQ6MJBuRdX 6kmnSs3b7XOL4HBiRBQAc55vjbx+ShHG9xtFebXTFgRBNSKaohmwx+Rz/VTH84j7PUuK6rkoU fln4go6icsNGlavUnEIgFFx4Lhx4saHM9XPyKBNwpi2qpjmU5PKk7fAIr53iUHLPFq3+TlRwW LzU+RS75dPoQKX3kPzXNYInjxJyceTh7cURIQ8Ededbq0MZaHKmT7sjdlkYA2vb84WafXV3Ap eLfrSs9WzuoIdA/Xx Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > The of_drm_find_bridge() function returns NULL on error, it doesn't retu= rn > error pointers so this check doesn't work. How do you think about a wording variant like the following? Change description: An error pointer check was performed after a call of the function =E2=80=9Cof_drm_find_bridge=E2=80=9D despite of the detail that failures are indicated for the bridge search by null pointers instead. Thus adjust a check for the failure predicate and the corresponding exception handling. Regards, Markus