From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S938192AbcIUQih (ORCPT ); Wed, 21 Sep 2016 12:38:37 -0400 Received: from mout.web.de ([212.227.15.4]:60349 "EHLO mout.web.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934220AbcIUQie (ORCPT ); Wed, 21 Sep 2016 12:38:34 -0400 Subject: [PATCH 01/14] GPU-DRM-OMAP: Use kmalloc_array() in tiler_map_show() To: dri-devel@lists.freedesktop.org, David Airlie , Laurent Pinchart , Tomi Valkeinen References: <566ABCD9.1060404@users.sourceforge.net> <0ea38611-3d93-0ade-a1fb-f8cc2e0b8d61@users.sourceforge.net> Cc: LKML , kernel-janitors@vger.kernel.org, Julia Lawall From: SF Markus Elfring Message-ID: <1e833599-303e-0ff0-30c8-7b7ee08f8b4f@users.sourceforge.net> Date: Wed, 21 Sep 2016 18:38:12 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.3.0 MIME-Version: 1.0 In-Reply-To: <0ea38611-3d93-0ade-a1fb-f8cc2e0b8d61@users.sourceforge.net> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Provags-ID: V03:K0:UTdSdZ+KrVSaIm6ruoUfwcabOYxytF8VHHjOPQO6DxWMKZSBWrf +V1wA47Kq297Mz41E7e7eU5hbOpFRYHp+i1rikIp2ItyeuO7ODUdCCEnnxj8UMUEiyTXGRL Kn4ExmywaYgNahNgGoG8XWtiKU5ogBqwlBbnjcn/bjChYqh8Igh6fNAOe6MNiUB1xELrRdQ mHXxa3SqAsO5PYmQSR9Iw== X-UI-Out-Filterresults: notjunk:1;V01:K0:cY4rJ0vD4n4=:i5e+q41HEbpsrMJJATGYGV AgQd/VaMLmb7b44CHVf3ZJRET+AcvwoXTXZSpwQAkbQewDc96OiA2/JuG88ucpfcRg5S5NGvV jHKtJDk+zfjj/61x7qtljDnGZqlIvkpI6OTX4HEBahSPV/sXrFQeIOgJgeqiVF6laVVnROy9j bTJPJGVpFuE/qcIsD3W808mPPcdNc6jTgk1zG/rBm0ZvTSomauw2vGXIbhffJfhzdBW2slVaT Gin+W+a4TGBUcL0gyRo7aqyteZTBKyxdkIg0nw4vJcjPKW+cUe5+uQjM4l3janiKzueKCEvYz kIKZmMgNo6EmMduBcTmwoLWDP2iQ1gaRSURLJ/crfaBqFpYWHyjokPpG8FGIqxuzvJyORDZlF V5Xyf/pFHu7YS+jv/IUwA7GkXSLZ37aPCzfkYTTUeTPMW2/YzUWRtJ7ZhTGtjUMfFUnWHEdnH E250o/3IpXLEybiHenCaSQtJc8g76BkXCq9CxB0CQAzoLozi2lKEWsrxJDJ8a79qyxsCBPkYY iQgPrcMs8UxP19Q45exUMMGCHMeFWmnr4/so5Tgr5ma2fqrnUpNF0J93xu6Rw06vW2VFFmaBU SpPWFf5/c34PgCq2X24AHut6aYYgmsQqhh2TX47nGsbXRmb4fPpXgkRj9oZvCNTzdwFMZQNZl tzhtCpELj5ErpbacrmIWGT5fVLTsjEdi+nwKm7ghAoHkHK1oPKuhXHaF8Wu9dHSGk/PRTuwHm caeTQ46H2g7qzDqQCWGdFdbq4YJ0m62d+JN3Udnpezs9T5OlX4Y0PrLuwS+bhBw5gj38TfKME bgmJbFY Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Markus Elfring Date: Wed, 21 Sep 2016 12:23:46 +0200 A multiplication for the size determination of a memory allocation indicated that an array data structure should be processed. Thus use the corresponding function "kmalloc_array". This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring --- drivers/gpu/drm/omapdrm/omap_dmm_tiler.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/gpu/drm/omapdrm/omap_dmm_tiler.c b/drivers/gpu/drm/omapdrm/omap_dmm_tiler.c index 4ceed7a9..7b32dd3 100644 --- a/drivers/gpu/drm/omapdrm/omap_dmm_tiler.c +++ b/drivers/gpu/drm/omapdrm/omap_dmm_tiler.c @@ -917,8 +917,7 @@ int tiler_map_show(struct seq_file *s, void *arg) h_adj = omap_dmm->container_height / ydiv; w_adj = omap_dmm->container_width / xdiv; - - map = kmalloc(h_adj * sizeof(*map), GFP_KERNEL); + map = kmalloc_array(h_adj, sizeof(*map), GFP_KERNEL); global_map = kmalloc((w_adj + 1) * h_adj, GFP_KERNEL); if (!map || !global_map) -- 2.10.0