netdev - [PATCH 03/25] net: mvneta: Use kmalloc_array() in mvneta_txq

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Message-ID: <d3e0290e-78fe-9134-4e1f-6f09d82c2a56@users.sourceforge.net>
Date:   Mon, 17 Apr 2017 17:13:08 +0200
From:   SF Markus Elfring <elfring@...rs.sourceforge.net>
To:     netdev@...r.kernel.org, "David S. Miller" <davem@...emloft.net>,
        Florian Fainelli <f.fainelli@...il.com>,
        Jarod Wilson <jarod@...hat.com>,
        Jisheng Zhang <jszhang@...vell.com>,
        Mirko Lindner <mlindner@...vell.com>,
        Philippe Reynes <tremyfr@...il.com>,
        Russell King <rmk+kernel@...linux.org.uk>,
        Sergei Shtylyov <sergei.shtylyov@...entembedded.com>,
        Stephen Hemminger <stephen@...workplumber.org>,
        Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org
Subject: [PATCH 03/25] net: mvneta: Use kmalloc_array() in mvneta_txq_init()

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Sun, 16 Apr 2017 22:11:22 +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.

Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
---
 drivers/net/ethernet/marvell/mvneta.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c
index 9c9eed5a8e28..9c2ddd22a86f 100644
--- a/drivers/net/ethernet/marvell/mvneta.c
+++ b/drivers/net/ethernet/marvell/mvneta.c
@@ -2933,7 +2933,8 @@ static int mvneta_txq_init(struct mvneta_port *pp,
 	mvreg_write(pp, MVNETA_TXQ_BASE_ADDR_REG(txq->id), txq->descs_phys);
 	mvreg_write(pp, MVNETA_TXQ_SIZE_REG(txq->id), txq->size);
 
-	txq->tx_skb = kmalloc(txq->size * sizeof(*txq->tx_skb), GFP_KERNEL);
+	txq->tx_skb = kmalloc_array(txq->size, sizeof(*txq->tx_skb),
+				    GFP_KERNEL);
 	if (txq->tx_skb == NULL) {
 		dma_free_coherent(pp->dev->dev.parent,
 				  txq->size * MVNETA_DESC_ALIGNED_SIZE,
-- 
2.12.2