linux-kernel - [PATCH 1/1] crypto: caam - use kmalloc

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Message-Id: <20251121024456.47381-1-13875017792@163.com>
Date: Fri, 21 Nov 2025 10:44:56 +0800
From: Gongwei Li <13875017792@....com>
To: horia.geanta@....com,
	pankaj.gupta@....com,
	gaurav.jain@....com,
	herbert@...dor.apana.org.au,
	davem@...emloft.net
Cc: linux-crypto@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Gongwei Li <ligongwei@...inos.cn>
Subject: [PATCH 1/1] crypto: caam - use kmalloc_array() instead of kmalloc()

From: Gongwei Li <ligongwei@...inos.cn>

Replace kmalloc() with kmalloc_array() to prevent potential
overflow, as recommended in Documentation/process/deprecated.rst.

Signed-off-by: Gongwei Li <ligongwei@...inos.cn>
---
 drivers/crypto/caam/ctrl.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/crypto/caam/ctrl.c b/drivers/crypto/caam/ctrl.c
index 320be5d77737..81583251b1f6 100644
--- a/drivers/crypto/caam/ctrl.c
+++ b/drivers/crypto/caam/ctrl.c
@@ -208,7 +208,7 @@ static int deinstantiate_rng(struct device *ctrldev, int state_handle_mask)
 	u32 *desc, status;
 	int sh_idx, ret = 0;
 
-	desc = kmalloc(CAAM_CMD_SZ * 3, GFP_KERNEL);
+	desc = kmalloc_array(3, CAAM_CMD_SZ, GFP_KERNEL);
 	if (!desc)
 		return -ENOMEM;
 
@@ -285,7 +285,7 @@ static int instantiate_rng(struct device *ctrldev, int state_handle_mask,
 	int ret = 0, sh_idx;
 
 	ctrl = (struct caam_ctrl __iomem *)ctrlpriv->ctrl;
-	desc = kmalloc(CAAM_CMD_SZ * 7, GFP_KERNEL);
+	desc = kmalloc_array(7, CAAM_CMD_SZ, GFP_KERNEL);
 	if (!desc)
 		return -ENOMEM;
 
-- 
2.25.1