linux-kernel - [PATCH 3/3] ASoC: test-component: Use kcalloc() instead of kzalloc()

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Message-Id: <20250820123423.470486-4-rongqianfeng@vivo.com>
Date: Wed, 20 Aug 2025 20:34:20 +0800
From: Qianfeng Rong <rongqianfeng@...o.com>
To: Mark Brown <broonie@...nel.org>,
	Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>,
	Liam Girdwood <lgirdwood@...il.com>,
	Jaroslav Kysela <perex@...ex.cz>,
	Takashi Iwai <tiwai@...e.com>,
	linux-kernel@...r.kernel.org (open list)
Cc: Qianfeng Rong <rongqianfeng@...o.com>
Subject: [PATCH 3/3] ASoC: test-component: Use kcalloc() instead of kzalloc()

Use devm_kcalloc() in test_driver_probe() to gain built-in overflow
protection, making memory allocation safer when calculating allocation
size compared to explicit multiplication.

Signed-off-by: Qianfeng Rong <rongqianfeng@...o.com>
---
 sound/soc/generic/test-component.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/soc/generic/test-component.c b/sound/soc/generic/test-component.c
index 89b995987e2d..2e49066dedd4 100644
--- a/sound/soc/generic/test-component.c
+++ b/sound/soc/generic/test-component.c
@@ -547,8 +547,8 @@ static int test_driver_probe(struct platform_device *pdev)
 
 	priv	= devm_kzalloc(dev, sizeof(*priv),		GFP_KERNEL);
 	cdriv	= devm_kzalloc(dev, sizeof(*cdriv),		GFP_KERNEL);
-	ddriv	= devm_kzalloc(dev, sizeof(*ddriv) * num,	GFP_KERNEL);
-	dname	= devm_kzalloc(dev, sizeof(*dname) * num,	GFP_KERNEL);
+	ddriv	= devm_kcalloc(dev, num, sizeof(*ddriv), 	GFP_KERNEL);
+	dname	= devm_kcalloc(dev, num, sizeof(*dname), 	GFP_KERNEL);
 	if (!priv || !cdriv || !ddriv || !dname || !adata)
 		return -EINVAL;
 
-- 
2.34.1