From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934263AbcIEQpa (ORCPT ); Mon, 5 Sep 2016 12:45:30 -0400 Received: from mout.web.de ([212.227.15.4]:60404 "EHLO mout.web.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933083AbcIEQpY (ORCPT ); Mon, 5 Sep 2016 12:45:24 -0400 Subject: [PATCH 01/21] ACPI-video: Use kmalloc_array() in acpi_video_get_levels() To: linux-acpi@vger.kernel.org, Hans de Goede , Len Brown , "Rafael J. Wysocki" , Zhang Rui References: <566ABCD9.1060404@users.sourceforge.net> <897ebf36-2fe5-e109-adf6-b81b6e863d9a@users.sourceforge.net> Cc: LKML , kernel-janitors@vger.kernel.org, Julia Lawall , Paolo Bonzini From: SF Markus Elfring Message-ID: <3af3b2e0-7cca-033c-da7e-caa1c62e20bb@users.sourceforge.net> Date: Mon, 5 Sep 2016 18:45:05 +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: <897ebf36-2fe5-e109-adf6-b81b6e863d9a@users.sourceforge.net> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Provags-ID: V03:K0:QRYEnUYmzX7/OTXrEaJn/hJlLAAhfrsdxSso5HWa0fQt6AVJHFg fF59TOOCo2Zqf2waJDrEB48sHaIaJqhjI1CrVVSNNMXwEKew5cu7WEunagKOanmGkdbyn+P o5MQE7bzGGtdrA1Iit0aDK8blvLisdSU+QPd3vf6Ef9lhQitgy2kh7LZ4mZ6lhLELfCY5qR mEwcf3VS6B8OneZ9USyMw== X-UI-Out-Filterresults: notjunk:1;V01:K0:u3L2sZKRBtQ=:Jb39eI8fwfhyYBxiGx7n7m nGJyfTyCK1bYdSZR6Op6/JtihVHfxKRFma1iyYxi80XQTVXA0UgDUCPsKq7ng4RHRVNEG9dfV z0NAPqouaSgeBjaXPoMTFVj014TJ3I/mvyjIdYQneZPJ+5ShbWrWFuOgaw6fmWsnsV5oVG5rH UdbsPtNcPAAvmdUrcYFFatn5T0HgOIV4pwMMESL54Tn1m+DzJRLoK/cLY/ono+MLXTPuSd5hS 8wSookGRWzyUgWcy4M259DtfHuTVz+UKyLFpuXlHOWIFCAle7ptaNBmqt3RIVvEjkZ8luFkqq AJPHCyvUfzpc/GbsBR2twl+YgvzHB3Ua0uRC/CXrjH3P1dE+ZQ/wy6zu2s1M9Fexri83XCXEc 3RfUKNUe1nU9IBywxRUhRM+Cd94CAFOLtUuNd91+D5jSy1b9YdXrRjIFiojfJaHhFgSldwVxI 4ygi4itlVDcXXgspOzZn/pg8fU5g4989rpn9+8C5TtXu4u7EQO23/WgBRgSqLILLs7kd1KvSQ dwtEnpuRrZUhzZhLgm6LPxf7Ir1f/z4waU6M9IT2u/M+xfrFbC73O2EcvSNhHLAaOZAc7H8uB zfdLyzAKIM6BQL0gDabRNHv4QyLx3pW/G2OPrXDJlKnLGu1AW7cBujf5dLTQRo1iUmQwqX+So ZQlkscwLSMd9H9YY/E+7i97cAKqpapj+EJ+owEK+i8xPj9cguzRZ7KUAhcfL3mhzKaBuZ07sF UENaooXtC6D3ifHerK12KjYTFqeFh1I3tfjEoXOuWOd6ND3xOg98Rm2Cljb+tDz+BRw65wtfz /cIrTnq Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Markus Elfring Date: Mon, 5 Sep 2016 11:33:30 +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/acpi/acpi_video.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/acpi/acpi_video.c b/drivers/acpi/acpi_video.c index c5557d0..3d39b53 100644 --- a/drivers/acpi/acpi_video.c +++ b/drivers/acpi/acpi_video.c @@ -784,8 +784,9 @@ int acpi_video_get_levels(struct acpi_device *device, goto out; } - br->levels = kmalloc((obj->package.count + 2) * sizeof *(br->levels), - GFP_KERNEL); + br->levels = kmalloc_array(obj->package.count + 2, + sizeof(*br->levels), + GFP_KERNEL); if (!br->levels) { result = -ENOMEM; goto out_free; -- 2.10.0