From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S966810AbcLVT7D (ORCPT ); Thu, 22 Dec 2016 14:59:03 -0500 Received: from mout.web.de ([212.227.15.14]:58745 "EHLO mout.web.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1761594AbcLVT7B (ORCPT ); Thu, 22 Dec 2016 14:59:01 -0500 Subject: [PATCH 1/2] [media] pvrusb2-io: Use kmalloc_array() in pvr2_stream_buffer_count() To: linux-media@vger.kernel.org, Mauro Carvalho Chehab , Mike Isely References: Cc: LKML , kernel-janitors@vger.kernel.org From: SF Markus Elfring Message-ID: Date: Thu, 22 Dec 2016 20:58:51 +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: Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Provags-ID: V03:K0:V76CZFTog9BHWmQGG2kfdwSCXhsjDnkm66KgNA9agHVIpy6v6sq UUF3YO0GAM+S7Y1JeJ1kL76xzHNhLovxiP27+npuN9NQBS6PXz7zCZmwVU4XG5eHOfhAQT4 fKLBNzkNTxzbbaQ29qILUS8IhE5If1SvSY2nMkJ5SNY0BjcqphWKW5RajzEqaWAzWWsuCQI a8/v36Cm8x62iSaLmOhCg== X-UI-Out-Filterresults: notjunk:1;V01:K0:O75SYkg7gFk=:E7GzOTXvYOI/wIVP0xoCJu i6sfI4f51L1qube8ZqRwv7yuonEhZmKAhBBkaFOUzDn3ywwnyhCcAil96mRE6o5e1n3lZH8Sa +LpnDWMlKodvBtPanT04lGPByTBCBmdYVRlSP3HzhLXUNWpqJLSTNvM/x0x7Zf2XwBxXkPVAJ i9aThPVCps9MUpvW/P30IYSSKv+NfdvzbazSNwbFxj1Z4200whSWALYWt4D1wl85Kj+l0baR3 nsuYnIwFt1lHVeyTz3jIj6GUYvgN29BY6y69IL/ET0vqTU0kYiTQ27x6HnwmIGjignmwA3ePP 3/t/OgNz0vtdBfhzZD/zkwuvWjqQ2tm1JpokJGp3ERmWgIOBy/FJXO775InbdNTkZe5QWJo3f rui7Jyrf++w7lgIDoqoOOqt05J1rIFHbuS+Enzrmw7E7LTMwTAPuLYlm8rxQqPvHIeR/PAJxN LOMJXncxB3kXuQShAMmJRdg8qQGT7h/iIQ5pB5i/bx9m10BR7RqH7KXzx4Jl0b3sRc6tTRZpP KA4lyn3DfPxVAGFT75pwfzNvGatSJS1ZzWI1OtSXelPkSIHnxU1YOHp+G41+l0D1cNgEqjPQy 6Ju5P/xTSYzxYt4pOK9ydrQ24gd6fISbouZLfyxm8dEGHgtnlVqDFDsy0ZNW18ul5nA8pm8RR l8Zghrt1DhObvLagvfNS0NMfWq2xgHrLp3D9AugLImDOxwa7fjs0cdqMawdXSJpqXRwsL5P/w 6OYxHMMtR0AyRUMi0YB0U6xIQs37aKV95Vl+3OaemKe0ooRVbkVd7Qz1A7FgrZMpOXQXU8C/1 jzEixSn Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Markus Elfring Date: Thu, 22 Dec 2016 19:26:52 +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/usb/pvrusb2/pvrusb2-io.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/media/usb/pvrusb2/pvrusb2-io.c b/drivers/media/usb/pvrusb2/pvrusb2-io.c index e3103ecd4828..a01510bfc84f 100644 --- a/drivers/media/usb/pvrusb2/pvrusb2-io.c +++ b/drivers/media/usb/pvrusb2/pvrusb2-io.c @@ -312,7 +312,8 @@ static int pvr2_stream_buffer_count(struct pvr2_stream *sp,unsigned int cnt) if (cnt > sp->buffer_total_count) { if (scnt > sp->buffer_slot_count) { struct pvr2_buffer **nb; - nb = kmalloc(scnt * sizeof(*nb),GFP_KERNEL); + + nb = kmalloc_array(scnt, sizeof(*nb), GFP_KERNEL); if (!nb) return -ENOMEM; if (sp->buffer_slot_count) { memcpy(nb,sp->buffers, -- 2.11.0