linux-kernel - Re: [PATCH] mfd: syscon: free the allocated name field of struct regmap

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Date:   Wed, 19 May 2021 13:05:06 +0100
From:   Lee Jones <lee.jones@...aro.org>
To:     Meng.Li@...driver.com
Cc:     linux-kernel@...r.kernel.org, maz@...nel.org, arnd@...db.de
Subject: Re: [PATCH] mfd: syscon: free the allocated name field of struct
 regmap_config

On Wed, 07 Apr 2021, Meng.Li@...driver.com wrote:

> From: Limeng <Meng.Li@...driver.com>
> 
> The commit 529a1101212a("mfd: syscon: Don't free allocated name
> for regmap_config") doesn't free the allocated name field of struct
> regmap_config, but introduce a memory leak. There is another
> commit 94cc89eb8fa5("regmap: debugfs: Fix handling of name string
> for debugfs init delays") fixing this debugfs init issue from root
> cause. With this fixing, the name field in struct regmap_debugfs_node
> is removed. When initialize debugfs for syscon driver, the name
> field of struct regmap_config is not used anymore. So, the allocated
> name field of struct regmap_config is need to be freed directly after
> regmap initialization to avoid memory leak.
> 
> Fixes: 529a1101212a("mfd: syscon: Don't free allocated name for regmap_config")
> Cc: Marc Zyngier <maz@...nel.org>
> Cc: stable@...r.kernel.org
> Signed-off-by: Meng Li <Meng.Li@...driver.com>
> ---
>  drivers/mfd/syscon.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Applied, thanks.

-- 
Lee Jones [李琼斯]
Senior Technical Lead - Developer Services
Linaro.org │ Open source software for Arm SoCs
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