From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759781AbcIXGYe (ORCPT ); Sat, 24 Sep 2016 02:24:34 -0400 Received: from mout.web.de ([212.227.15.3]:57753 "EHLO mout.web.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752975AbcIXGY3 (ORCPT ); Sat, 24 Sep 2016 02:24:29 -0400 Subject: [PATCH 1/7] iio: Use kmalloc_array() in iio_scan_mask_set() To: linux-iio@vger.kernel.org, Hartmut Knaack , Jonathan Cameron , Lars-Peter Clausen , Peter Meerwald-Stadler References: <566ABCD9.1060404@users.sourceforge.net> Cc: LKML , kernel-janitors@vger.kernel.org, Julia Lawall From: SF Markus Elfring Message-ID: Date: Sat, 24 Sep 2016 08:24:09 +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: Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Provags-ID: V03:K0:+hjRoGijm+a93G3f4jr7qxj1JG6fCOL7PvKQ0FXLyuDk1yImEUv RV0FuHttYyZYrtv4al4N7QOI+A8mgExftLT3/zftAcl4tWt5Su10/yDV+EdMdn30NT42Q3M bmg/IFnY9vDoiGGqZ0kIVTXarndV5gsP+GSaq5obr2mcJeAz45DgNG0ZYs9zd34vXGK7VGa 4dCkazyyRIvGCiCAwGJag== X-UI-Out-Filterresults: notjunk:1;V01:K0:MANY80BLCqI=:BS0fASwx7ItGaEnWLo5exZ sSZOEMklgzGri+tx+SVExGOfIrYLnX90Jk8rs4KnBLdUqWFL+xz1LhcV7UhvkxT1gfBnCJSUk n1tYwq9Ot7WJBz4pjcHZz6wtdGKr784lGCpnJlL4/zwSrcgaYfsxAe+JpaXLwNF6Q+CqP0NxW AsYlkG/ae6V3QiRVo3T1wW8AWGq96mn8WVExnZCUkDKqkIy6MAjjhEkdC85dMb25vbASLHxtS vzLz6L0Q1rnDQYNufTErZVFPUffJFX9l3Gk9lifbKRCPcgNKOJ0vvVChNmlKlS+/FA3OeeLTa pudE9i/IwvLtKFcGYQlwFJ46z79HgjLUu9i+znxcX/Ejrh3R4cCt3ko7tQ2h2mLXOhTfaox9U jQdonP/MKbp2OhefnE/GqycGxWJra+ah4RkxOo44O6xbcFJpg63fuEDVFmefEKdrtm29kra6z SaKqxP2R4YULQK678IyozadAFpzoXEUmcM4rpRRZiWTq/bKTBL0mwoiR+DPUelqXDcyjfeiXi i84DEvXWigjWO9xNiptwsqBkepRv/sQK0/qWATagO2veHCv/PHcR0OG+sqKJU/uySjziXn5kl W7tBZB2iUGeyrdP4gTU2jhWyyCyuriRZB7H7cWCI+ImyeN38mqdsXwFc3Uj745vV8HenBqcQ+ fWiztSDy0ZROzNGUcMffh2rSRe+ZSM2aSzDNLJF+yGMRg06kn8IfdeXXEtsXwLwic/ByJAvak PITJsYp/xbhJv+U74GDZnaubDkKnOg6DUq/5vEqI8/lVKRXCPV8dinXNB0oYDho84FEZagukK 8C59kWV Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Markus Elfring Date: Fri, 23 Sep 2016 22:30:32 +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/iio/industrialio-buffer.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/drivers/iio/industrialio-buffer.c b/drivers/iio/industrialio-buffer.c index 49bf9c5..7a4d9499 100644 --- a/drivers/iio/industrialio-buffer.c +++ b/drivers/iio/industrialio-buffer.c @@ -307,10 +307,9 @@ static int iio_scan_mask_set(struct iio_dev *indio_dev, const unsigned long *mask; unsigned long *trialmask; - trialmask = kmalloc(sizeof(*trialmask)* - BITS_TO_LONGS(indio_dev->masklength), - GFP_KERNEL); - + trialmask = kmalloc_array(BITS_TO_LONGS(indio_dev->masklength), + sizeof(*trialmask), + GFP_KERNEL); if (trialmask == NULL) return -ENOMEM; if (!indio_dev->masklength) { -- 2.10.0