linux-kernel - [PATCH 1/4] clk/Renesas-MSTP: Use kmalloc_array() in cpg_mstp_clocks

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Date:   Wed, 14 Sep 2016 22:00:06 +0200
From:   SF Markus Elfring <elfring@...rs.sourceforge.net>
To:     linux-clk@...r.kernel.org,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Michael Turquette <mturquette@...libre.com>,
        Simon Horman <horms+renesas@...ge.net.au>,
        Stephen Boyd <sboyd@...eaurora.org>,
        Ulf Hansson <ulf.hansson@...aro.org>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org,
        Julia Lawall <julia.lawall@...6.fr>
Subject: [PATCH 1/4] clk/Renesas-MSTP: Use kmalloc_array() in
 cpg_mstp_clocks_init()

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Wed, 14 Sep 2016 21:10:47 +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/clk/renesas/clk-mstp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/clk/renesas/clk-mstp.c b/drivers/clk/renesas/clk-mstp.c
index 5093a25..9375777 100644
--- a/drivers/clk/renesas/clk-mstp.c
+++ b/drivers/clk/renesas/clk-mstp.c
@@ -167,7 +167,7 @@ static void __init cpg_mstp_clocks_init(struct device_node *np)
 	unsigned int i;
 
 	group = kzalloc(sizeof(*group), GFP_KERNEL);
-	clks = kmalloc(MSTP_MAX_CLOCKS * sizeof(*clks), GFP_KERNEL);
+	clks = kmalloc_array(MSTP_MAX_CLOCKS, sizeof(*clks), GFP_KERNEL);
 	if (group == NULL || clks == NULL) {
 		kfree(group);
 		kfree(clks);
-- 
2.10.0