linux-kernel - [PATCH] clk-kona-setup: Use kmalloc_array() in parent

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Date:   Wed, 14 Sep 2016 20:40:20 +0200
From:   SF Markus Elfring <elfring@...rs.sourceforge.net>
To:     bcm-kernel-feedback-list@...adcom.com, linux-clk@...r.kernel.org,
        Alex Elder <elder@...aro.org>,
        Florian Fainelli <f.fainelli@...il.com>,
        Matt Porter <mporter@...aro.org>,
        Michael Turquette <mturquette@...libre.com>,
        Ray Jui <rjui@...adcom.com>,
        Scott Branden <sbranden@...adcom.com>,
        Stephen Boyd <sboyd@...eaurora.org>,
        Vaishali Thakkar <vaishali.thakkar@...cle.com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org,
        Julia Lawall <julia.lawall@...6.fr>
Subject: [PATCH] clk-kona-setup: Use kmalloc_array() in parent_process()

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Wed, 14 Sep 2016 20:26:05 +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/bcm/clk-kona-setup.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/clk/bcm/clk-kona-setup.c b/drivers/clk/bcm/clk-kona-setup.c
index 526b0b0..a2e7e91 100644
--- a/drivers/clk/bcm/clk-kona-setup.c
+++ b/drivers/clk/bcm/clk-kona-setup.c
@@ -586,8 +586,9 @@ static u32 *parent_process(const char *clocks[],
 	}
 
 	/* There is at least one parent, so allocate a selector array */
-
-	parent_sel = kmalloc(parent_count * sizeof(*parent_sel), GFP_KERNEL);
+	parent_sel = kmalloc_array(parent_count,
+				   sizeof(*parent_sel),
+				   GFP_KERNEL);
 	if (!parent_sel) {
 		pr_err("%s: error allocating %u parent selectors\n", __func__,
 				parent_count);
-- 
2.10.0