linux-kernel - [PATCH v3] crypto: caam - switch to use devm_kmemdup

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Message-ID: <20250827155236014-BSh7mfwJD5Yz3cdi955c@zte.com.cn>
Date: Wed, 27 Aug 2025 15:52:36 +0800 (CST)
From: <zhang.enpei@....com.cn>
To: <horia.geanta@....com>
Cc: <pankaj.gupta@....com>, <gaurav.jain@....com>,
        <herbert@...dor.apana.org.au>, <davem@...emloft.net>,
        <linux-crypto@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <christophe.jaillet@...adoo.fr>
Subject: [PATCH v3] crypto: caam - switch to use devm_kmemdup_array()

From: Zhang Enpei <zhang.enpei@....com.cn>

Use devm_kmemdup_array() to avoid multiplication or possible overflows.

Signed-off-by: Zhang Enpei <zhang.enpei@....com.cn>
---
 drivers/crypto/caam/ctrl.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/crypto/caam/ctrl.c b/drivers/crypto/caam/ctrl.c
index ce7b99019537..2250dce9c344 100644
--- a/drivers/crypto/caam/ctrl.c
+++ b/drivers/crypto/caam/ctrl.c
@@ -592,9 +592,9 @@ static int init_clocks(struct device *dev, const struct caam_imx_data *data)
 	int ret;

 	ctrlpriv->num_clks = data->num_clks;
-	ctrlpriv->clks = devm_kmemdup(dev, data->clks,
-				      data->num_clks * sizeof(data->clks[0]),
-				      GFP_KERNEL);
+	ctrlpriv->clks = devm_kmemdup_array(dev, data->clks,
+					    data->num_clks, sizeof(*data->clks),
+					    GFP_KERNEL);
 	if (!ctrlpriv->clks)
 		return -ENOMEM;

-- 
2.25.1