From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755637AbcLZUoA (ORCPT ); Mon, 26 Dec 2016 15:44:00 -0500 Received: from mout.web.de ([212.227.15.14]:63824 "EHLO mout.web.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751292AbcLZUn5 (ORCPT ); Mon, 26 Dec 2016 15:43:57 -0500 Subject: [PATCH 1/8] [media] v4l2-async: Use kmalloc_array() in v4l2_async_notifier_unregister() To: linux-media@vger.kernel.org, Dave Hansen , Jan Kara , Javier Martinez Canillas , "Kirill A. Shutemov" , Lorenzo Stoakes , Mauro Carvalho Chehab , Michal Hocko , Sakari Ailus References: <9268b60d-08ba-c64e-1848-f84679d64f80@users.sourceforge.net> Cc: LKML , kernel-janitors@vger.kernel.org From: SF Markus Elfring Message-ID: <442a32b4-6952-3b2a-44a3-46254c5976f2@users.sourceforge.net> Date: Mon, 26 Dec 2016 21:43:23 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.6.0 MIME-Version: 1.0 In-Reply-To: <9268b60d-08ba-c64e-1848-f84679d64f80@users.sourceforge.net> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Provags-ID: V03:K0:LAdRDCMVHavjczY/ssdD7Fas235uLi1PirroAeyQFlRGmlPQQyc cnWsv11oYs3qrOGQSEWN2m/VsBCkAYeq8mjm3BxbxIyYSenQdDHaEsIugJTJfPqBSZI+zkR wHLdYmAzZw56kNSv5d9vOs4VWvxUG6OMrfWps2g22WBzFFuRbnEOMGFTR2pdLmb1iBevwAA vaIsHDqrF2bOwB6uWWZjA== X-UI-Out-Filterresults: notjunk:1;V01:K0:ZYL1wDQwB+w=:AJBHWHzvb72/jgKNMRN8H0 oY9KMt9mWK+8CFtFemqeuziGPMb8Gz7pqPBFr7Bv4I33IQnoAYdOhIlCOE06QBoBBy1e3VPPL /EuvwaqdVwtKZSj9CDEfh/S222fZ73yBTT4km9a8bax+8j/WNXVbvZOB9aLHEg5suTGxDSc9a t8eFbp4WCOSoVaaXma1veyZdd5He5BNGKC5M+v/4j+ihJGH2BV6IEMBCb9GhhKQhvNb3WIb71 +rRJLc9/U0C+i3kC4BWDqCwz4By+Z9FCK2D0FNETWrbyd1gYfNgT/4Dl1TuK22C3BrFjLuwqx C1HzyE9UwnC1hr74E/2+Hit1npcUyp/h6ZLkAv+JrlIJsdtPPrGSzOrUJIIqFw/whHQpgQmYk 2PDwkShbbqLgG6vSOi2n9Zj8LM95Y7GFRT9PGVF1fcHJl71RCQTrgYKovs5logKeqetwcUBES NMokzSPpsJCRLsURbB9Eodv0Q2MQXqPhWR805RFkGRPw/vCcdio7DSuWZH00c4/fKlTb1+POr 5o/oOgxTBNg2GvRXlVvHt9O2H+1BUxzZOtAMZOWwfAOiscgptgMtmn1nK3RUoO9ZUuyk8wAQT owGJUAtTTQMEfTtjQN8FdiKfObHlwWWbReyBmj2WlKIZpUT7+K4/g2RQZpbEzXJLQOWKVvkLE XZmjmTKgfF5x6WImh/YbyCY0vwjryZQ/bvmgetbSAO9zFUvY+3UggovmHPOWX/WCV/eTiNPiS sRgbNpWJRCoK/frUDBYyf3WX0+60n1n8zMAnwIWxdLeJ0joMKgQWKJVCa8aYTTwvqx5rs8z+5 yDq7TS1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Markus Elfring Date: Mon, 26 Dec 2016 18:14:33 +0100 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/media/v4l2-core/v4l2-async.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/media/v4l2-core/v4l2-async.c b/drivers/media/v4l2-core/v4l2-async.c index 5bada202b2d3..277183f2d514 100644 --- a/drivers/media/v4l2-core/v4l2-async.c +++ b/drivers/media/v4l2-core/v4l2-async.c @@ -202,7 +202,7 @@ void v4l2_async_notifier_unregister(struct v4l2_async_notifier *notifier) if (!notifier->v4l2_dev) return; - dev = kmalloc(n_subdev * sizeof(*dev), GFP_KERNEL); + dev = kmalloc_array(n_subdev, sizeof(*dev), GFP_KERNEL); if (!dev) { dev_err(notifier->v4l2_dev->dev, "Failed to allocate device cache!\n"); -- 2.11.0