linux-kernel - [PATCH 2/2] regulator: s2mps11: Use devm_kmalloc_array() in s2mps11_pmic

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Message-ID: <57e9c3a5-3751-41ee-3b70-f532fb928571@users.sourceforge.net>
Date:   Fri, 14 Apr 2017 23:02:55 +0200
From:   SF Markus Elfring <elfring@...rs.sourceforge.net>
To:     linux-samsung-soc@...r.kernel.org,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Sangbeom Kim <sbkim73@...sung.com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org
Subject: [PATCH 2/2] regulator: s2mps11: Use devm_kmalloc_array() in
 s2mps11_pmic_probe()

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Fri, 14 Apr 2017 22:40:19 +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.

Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
---
 drivers/regulator/s2mps11.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/regulator/s2mps11.c b/drivers/regulator/s2mps11.c
index b4e588cce03d..b397a2e0bcd1 100644
--- a/drivers/regulator/s2mps11.c
+++ b/drivers/regulator/s2mps11.c
@@ -1139,9 +1139,11 @@ static int s2mps11_pmic_probe(struct platform_device *pdev)
 		return -EINVAL;
 	}
 
-	s2mps11->ext_control_gpio = devm_kmalloc(&pdev->dev,
-			sizeof(*s2mps11->ext_control_gpio) * rdev_num,
-			GFP_KERNEL);
+	s2mps11->ext_control_gpio
+		= devm_kmalloc_array(&pdev->dev,
+				     rdev_num,
+				     sizeof(*s2mps11->ext_control_gpio),
+				     GFP_KERNEL);
 	if (!s2mps11->ext_control_gpio)
 		return -ENOMEM;
 	/*
-- 
2.12.2