From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mout.web.de ([212.227.15.14]:60100 "EHLO mout.web.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933302AbcJLO3X (ORCPT ); Wed, 12 Oct 2016 10:29:23 -0400 Subject: [PATCH 01/34] [media] DaVinci-VPBE: Use kmalloc_array() in vpbe_initialize() To: linux-media@vger.kernel.org, Hans Verkuil , "Lad, Prabhakar" , Mauro Carvalho Chehab References: Cc: LKML , kernel-janitors@vger.kernel.org, Julia Lawall From: SF Markus Elfring Message-ID: Date: Wed, 12 Oct 2016 16:29:01 +0200 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=iso-8859-15 Content-Transfer-Encoding: 7bit Sender: linux-media-owner@vger.kernel.org List-ID: From: Markus Elfring Date: Tue, 11 Oct 2016 09:40:41 +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. * Replace the specification of a data type by a pointer dereference to make the corresponding size determination a bit safer according to the Linux coding style convention. Signed-off-by: Markus Elfring --- drivers/media/platform/davinci/vpbe.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/media/platform/davinci/vpbe.c b/drivers/media/platform/davinci/vpbe.c index 9a6c2cc..8c062ff 100644 --- a/drivers/media/platform/davinci/vpbe.c +++ b/drivers/media/platform/davinci/vpbe.c @@ -676,9 +676,9 @@ static int vpbe_initialize(struct device *dev, struct vpbe_device *vpbe_dev) * store venc sd index. */ num_encoders = vpbe_dev->cfg->num_ext_encoders + 1; - vpbe_dev->encoders = kmalloc( - sizeof(struct v4l2_subdev *)*num_encoders, - GFP_KERNEL); + vpbe_dev->encoders = kmalloc_array(num_encoders, + sizeof(*vpbe_dev->encoders), + GFP_KERNEL); if (NULL == vpbe_dev->encoders) { v4l2_err(&vpbe_dev->v4l2_dev, "unable to allocate memory for encoders sub devices"); -- 2.10.1