linux-kernel - [PATCH 0/3] ASoC: Use kcalloc() instead of kzalloc()

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Message-Id: <20250820123423.470486-1-rongqianfeng@vivo.com>
Date: Wed, 20 Aug 2025 20:34:17 +0800
From: Qianfeng Rong <rongqianfeng@...o.com>
To: Nick Li <nick.li@...rsemi.com>,
	Liam Girdwood <lgirdwood@...il.com>,
	Mark Brown <broonie@...nel.org>,
	Jaroslav Kysela <perex@...ex.cz>,
	Takashi Iwai <tiwai@...e.com>,
	Shengjiu Wang <shengjiu.wang@...il.com>,
	Xiubo Li <Xiubo.Lee@...il.com>,
	Fabio Estevam <festevam@...il.com>,
	Nicolin Chen <nicoleotsuka@...il.com>,
	Shawn Guo <shawnguo@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>,
	Andrew Davis <afd@...com>,
	Chen Ni <nichen@...as.ac.cn>,
	Linus Walleij <linus.walleij@...aro.org>,
	Qianfeng Rong <rongqianfeng@...o.com>,
	Al Viro <viro@...iv.linux.org.uk>,
	linux-sound@...r.kernel.org (open list:FOURSEMI AUDIO AMPLIFIER DRIVER),
	linux-kernel@...r.kernel.org (open list),
	linuxppc-dev@...ts.ozlabs.org (open list:FREESCALE SOC SOUND DRIVERS),
	imx@...ts.linux.dev (open list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE),
	linux-arm-kernel@...ts.infradead.org (moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE)
Subject: [PATCH 0/3] ASoC: Use kcalloc() instead of kzalloc()

Replace devm_kzalloc() with devm_kcalloc() in sound/soc.  As noted in the
kernel documentation [1], open-coded multiplication in allocator arguments
is discouraged because it can lead to integer overflow.

Using devm_kcalloc() provides built-in overflow protection, making the
memory allocation safer when calculating the allocation size compared
to explicit multiplication.

[1]: https://www.kernel.org/doc/html/next/process/deprecated.html#open-coded-arithmetic-in-allocator-arguments

Qianfeng Rong (3):
  ASoC: codecs: Use kcalloc() instead of kzalloc()
  ASoC: fsl: Use kcalloc() instead of kzalloc()
  ASoC: test-component: Use kcalloc() instead of kzalloc()

 sound/soc/codecs/fs-amp-lib.c      | 2 +-
 sound/soc/codecs/pcm6240.c         | 4 ++--
 sound/soc/fsl/fsl_sai.c            | 2 +-
 sound/soc/fsl/imx-audmux.c         | 2 +-
 sound/soc/generic/test-component.c | 4 ++--
 5 files changed, 7 insertions(+), 7 deletions(-)

-- 
2.34.1