linux-kernel - Re: [PATCH v3 0/2] Fix two memory leaks in rproc

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Message-ID: <aBpGvZ4U6VFpu1gl@p14s>
Date: Tue, 6 May 2025 11:28:29 -0600
From: Mathieu Poirier <mathieu.poirier@...aro.org>
To: Xiaolei Wang <xiaolei.wang@...driver.com>
Cc: andersson@...nel.org, shawnguo@...nel.org, s.hauer@...gutronix.de,
	kernel@...gutronix.de, festevam@...il.com,
	linux-remoteproc@...r.kernel.org, imx@...ts.linux.dev,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 0/2] Fix two memory leaks in rproc_attach()

On Wed, Apr 30, 2025 at 05:20:41PM +0800, Xiaolei Wang wrote:
> In the rproc_attach() function, if rproc_handle_resources() returns
> failure, the resources requested in imx_rproc_prepare() should be
> released, since almost the same thing is done in imx_rproc_prepare() and
> rproc_resource_cleanup(), Function rproc_resource_cleanup() is able
> to deal with empty lists so it is better to fix the "goto" statements
> in rproc_attach(). replace the "unprepare_device" goto statement with
> "clean_up_resources" and get rid of the "unprepare_device" label.
> and rproc->clean_table should also be released
> 
> Changes in v3:
>     Update patch1, replace the "unprepare_device" goto statement with
>     "clean_up_resources" and get rid of the "unprepare_device" label.
> 
> V2:
>     Updated the commit log of these two patches
>     https://patchwork.kernel.org/project/linux-remoteproc/patch/20250426065348.1234391-2-xiaolei.wang@windriver.com/
>     https://patchwork.kernel.org/project/linux-remoteproc/patch/20250426065348.1234391-3-xiaolei.wang@windriver.com/
> 
> V1: https://patchwork.kernel.org/project/linux-remoteproc/patch/20250424122252.2777363-1-xiaolei.wang@windriver.com/
>     https://patchwork.kernel.org/project/linux-remoteproc/patch/20250424122252.2777363-2-xiaolei.wang@windriver.com/
> 
> Xiaolei Wang (2):
>   remoteproc: cleanup acquired resources when rproc_handle_resources()
>     fails in rproc_attach()
>   remoteproc: core: release rproc->clean_table after rproc_attach()
>     fails
> 
>  drivers/remoteproc/remoteproc_core.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 

I have applied this patchset.

Thanks,
Mathieu

> -- 
> 2.25.1
>