From mboxrd@z Thu Jan 1 00:00:00 1970 From: SF Markus Elfring Subject: [PATCH 1/5] ATM-nicstar: Use kmalloc_array() in get_scq() Date: Sat, 10 Sep 2016 09:17:48 +0200 Message-ID: <698e4922-e671-f60f-4599-ad4d7613c808@users.sourceforge.net> References: Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Cc: LKML , kernel-janitors@vger.kernel.org, Julia Lawall , Paolo Bonzini To: linux-atm-general@lists.sourceforge.net, netdev@vger.kernel.org, Chas Williams <3chas3@gmail.com> Return-path: In-Reply-To: Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org From: Markus Elfring Date: Sat, 10 Sep 2016 08:02:06 +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/atm/nicstar.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/atm/nicstar.c b/drivers/atm/nicstar.c index 700ed15..50dec13 100644 --- a/drivers/atm/nicstar.c +++ b/drivers/atm/nicstar.c @@ -871,8 +871,9 @@ static scq_info *get_scq(ns_dev *card, int size, u32 scd) kfree(scq); return NULL; } - scq->skb = kmalloc(sizeof(struct sk_buff *) * - (size / NS_SCQE_SIZE), GFP_KERNEL); + scq->skb = kmalloc_array(size / NS_SCQE_SIZE, + sizeof(*scq->skb), + GFP_KERNEL); if (!scq->skb) { dma_free_coherent(&card->pcidev->dev, 2 * size, scq->org, scq->dma); -- 2.10.0