From mboxrd@z Thu Jan 1 00:00:00 1970 From: SF Markus Elfring Subject: [PATCH 01/25] net: mvneta: Use devm_kmalloc_array() in mvneta_init() Date: Mon, 17 Apr 2017 17:08:29 +0200 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Cc: LKML , kernel-janitors@vger.kernel.org To: netdev@vger.kernel.org, "David S. Miller" , Florian Fainelli , Jarod Wilson , Jisheng Zhang , Mirko Lindner , Philippe Reynes , Russell King , Sergei Shtylyov , Stephen Hemminger , Thomas Petazzoni Return-path: In-Reply-To: Content-Language: en-GB Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org From: Markus Elfring Date: Sun, 16 Apr 2017 21:23:19 +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 "devm_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/net/ethernet/marvell/mvneta.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c index 34a3686d2ce6..46fa74e93814 100644 --- a/drivers/net/ethernet/marvell/mvneta.c +++ b/drivers/net/ethernet/marvell/mvneta.c @@ -4017,9 +4017,11 @@ static int mvneta_init(struct device *dev, struct mvneta_port *pp) rxq->size = pp->rx_ring_size; rxq->pkts_coal = MVNETA_RX_COAL_PKTS; rxq->time_coal = MVNETA_RX_COAL_USEC; - rxq->buf_virt_addr = devm_kmalloc(pp->dev->dev.parent, - rxq->size * sizeof(void *), - GFP_KERNEL); + rxq->buf_virt_addr + = devm_kmalloc_array(pp->dev->dev.parent, + rxq->size, + sizeof(*rxq->buf_virt_addr), + GFP_KERNEL); if (!rxq->buf_virt_addr) return -ENOMEM; } -- 2.12.2