From patchwork Sun Sep 22 12:37:13 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Markus Elfring X-Patchwork-Id: 11155885 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 7581313B1 for ; Sun, 22 Sep 2019 12:37:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 49F95208C0 for ; Sun, 22 Sep 2019 12:37:46 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=web.de header.i=@web.de header.b="awYcnYun" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728956AbfIVMhp (ORCPT ); Sun, 22 Sep 2019 08:37:45 -0400 Received: from mout.web.de ([217.72.192.78]:50941 "EHLO mout.web.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728920AbfIVMhp (ORCPT ); Sun, 22 Sep 2019 08:37:45 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=web.de; s=dbaedf251592; t=1569155843; bh=ZoL9rSRGY/hMR5+RyJQUdt0h2EOtukOtB+LPCYWzxKg=; h=X-UI-Sender-Class:To:From:Subject:Date; b=awYcnYuntF244h8HPK1yiYcZ20b3UVlusPYc7qekqUfjgxjTqQwt06n23g2JEi7R2 cD7M/sSKGT948+AzQMWyaLw1SGkMEETpmkk+ZGkeMP/BjCppJGM9XYKRP7LFlezlCs NO4a+6PXp79tFiLbZ0UryRQ+EfoGHfloqTQLEFBc= X-UI-Sender-Class: c548c8c5-30a9-4db5-a2e7-cb6cb037b8f9 Received: from [192.168.1.2] ([2.244.8.78]) by smtp.web.de (mrweb102 [213.165.67.124]) with ESMTPSA (Nemesis) id 0MMEzJ-1iHFmg1Ej7-0080pg; Sun, 22 Sep 2019 14:37:23 +0200 To: dmaengine@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Dan Williams , Jun Nie , Shawn Guo , Vinod Koul , LKML , kernel-janitors@vger.kernel.org From: Markus Elfring Subject: [PATCH] dmaengine: zx: Use devm_platform_ioremap_resource() in zx_dma_probe() 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: <85de79fa-1ca5-a1e5-0296-9e8a2066f134@web.de> Date: Sun, 22 Sep 2019 14:37:13 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.1.0 MIME-Version: 1.0 Content-Language: en-US X-Provags-ID: V03:K1:LOEoO3e1HjDq2nqUHuxvqMDK/yYBX6Gy7vCJgGLOF5eZQqZ7WZC tpZZ/1BrkoqC4rDc8oB9h7LGQk4Xn8WE+xH1QB0JAc2elmhjcI7DQBc8dMCfbGfiq3LSDST 1ike6eJUP7xbwDBJw5eSnkM1SG9uHHKdYATFC8kQjdJ+/J+PK6v/VuBbzanUiVp78O9QQ4x +++7PliC8atxMbqhWAoMA== X-Spam-Flag: NO X-UI-Out-Filterresults: notjunk:1;V03:K0:YFGd7ygc9dM=:B9Ui2zdMXQaZPy/wrce6xK f22ZfLDXG50YlIeVA+6XQd46HMfu/B94JtwC5DoqlGFeFamGDojoZ0WCFd2w6cTZ8aw6hg+1r KKa97UfeJCWk6vi9dl6lNpAqh1osMoT56psvn+9I3hMIc7eW2IIokfsEZb3SbswBZYEfdZ+SY jvlc2ArA1YqpmmvsQp1Zj9CNLTXwue9Q9wKFxszpZ5p0HgN+BRinh9AIJCe94qLRJ6sypEUfn KJ9ppCmjAUcwKFj+DwQBNEHaABM9Tq1hWFbinc9W6S/QGT0f8byOJ9AFj6OwZvFNOykhPnl2N g7u41CTxlKtqAfnxFDi7mYvsEPtIQ+5WMocDoIJ0lgBVjM1HQgoxjzMBmFB0skSMsVXVJreCJ JTmuHDhrGGk8bmaiQ9/7qY8GjOim0AvumSC/NUS6DjNgClu0OS9ovwGZKqUwZWnfqMOFeEBpn ya3TsTY6th/r9/ZRLe3YuPHsNndmH3Y5Dt4J/zDxw7QkwcDUP+5RxFJcM1JX/7YFGL3DmKwYv hti0jKjn0wLqfC4sE3dEnUat3ESctlfXCg70mXcX/X3WZePQDKq54BIsPfucw35/zPFU1yJXz tO+vb7c+xcIvvwfKkCr/D92lOGS2M3pSHiTpmPjZz4uKOjKhJOs1PCXnB+70DiQMpmmJbaj2O zGWjmmAqF2lkWwrNYXZp+JWcJV3SIAouUB+Dpvq6Ojp7rbVGvW8jlcUfmY5xzTOsm+diBBk0d LndMLvmCw5gfO2QeMkieEsh1qZ+MZ1IuSj8Hulx+de0cAGHpbcBZCn7UJ1a3uVN47B2NMtmnN CGZmTXXYcMVUt6C+RhUmR5NPuKE7zNpyoZUjLrFrPNvg3eKl26Nh8xKpkpuEFyxvcGFXh9BYw f/C+EG5pg7ipYnZ4Z1dx14iI+AMUc1attF1RkRuVUYIRhypJqofU9TMCvXwlJk5xaDLjtgD1R MBleTNKYgMW46gBRDvjtUHRx5sPPibq9HS4XrewzwVoW7BRSdxoMgqFLeiLM3hiT/WhM6ODTi D2tc5iMrh0BzBNoSlL7ONtfuuBFG2QrpFhh8hvgawsrdl9i9fdHge3xNLvjJSIpUM7wJ0bM7C Qe1rO4t3D4LX284zNOf9NFUX2XMivbzfXo9UhAhKX+h2X5j3oshp1HCDhDhh+HBV55I4ZnlS0 2TQ+bgiSB5v6D08y7v5JaTUpplJEBjFToBqKMuCsFqLRWwVxyjLmFxwQm5/TQsqJq09YuH0Z3 JmOlY1qxzUUpBFN5xZ67fTeUPCWjkAe4bWYOwbpQUB5LJwA++XbQVtjSoy/g= Sender: dmaengine-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: dmaengine@vger.kernel.org From: Markus Elfring Date: Sun, 22 Sep 2019 14:32:12 +0200 Simplify this function implementation by using a known wrapper function. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring Acked-by: Shawn Guo --- drivers/dma/zx_dma.c | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) -- 2.23.0 diff --git a/drivers/dma/zx_dma.c b/drivers/dma/zx_dma.c index 9f4436f7c914..6b457e683e70 100644 --- a/drivers/dma/zx_dma.c +++ b/drivers/dma/zx_dma.c @@ -754,18 +754,13 @@ static struct dma_chan *zx_of_dma_simple_xlate(struct of_phandle_args *dma_spec, static int zx_dma_probe(struct platform_device *op) { struct zx_dma_dev *d; - struct resource *iores; int i, ret = 0; - iores = platform_get_resource(op, IORESOURCE_MEM, 0); - if (!iores) - return -EINVAL; - d = devm_kzalloc(&op->dev, sizeof(*d), GFP_KERNEL); if (!d) return -ENOMEM; - d->base = devm_ioremap_resource(&op->dev, iores); + d->base = devm_platform_ioremap_resource(op, 0); if (IS_ERR(d->base)) return PTR_ERR(d->base);