linux-kernel - Re: [PATCH] drm/amd/display: fix memory leak when using debugfs

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Message-ID: <67fe15fc-bd6a-5eee-4359-5d6244db54ef@amd.com>
Date:   Tue, 6 Sep 2022 11:39:44 -0400
From:   Rodrigo Siqueira Jordao <Rodrigo.Siqueira@....com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Harry Wentland <harry.wentland@....com>,
        Leo Li <sunpeng.li@....com>,
        Alex Deuc her <alexander.deucher@....com>,
        Christian König <christian.koenig@....com>,
        Xinhui.Pan@....com, linux-kernel@...r.kernel.org,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>, Wayne Lin <Wayne.Lin@....com>,
        hersen wu <hersenxs.wu@....com>,
        Wenjing Liu <wenjing.liu@....com>,
        Patrik Jakobsson <patrik.r.jakobsson@...il.com>,
        Thelford Williams <tdwilliamsiv@...il.com>,
        Fangzhi Zuo <Jerry.Zuo@....com>,
        Yongzhi Liu <lyz_cs@....edu.cn>,
        Mikita Lipski <mikita.lipski@....com>,
        Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>,
        Bhanuprakash Modem <bhanuprakash.modem@...el.com>,
        Sean Paul <seanpaul@...omium.org>,
        amd-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org
Subject: Re: [PATCH] drm/amd/display: fix memory leak when using
 debugfs_lookup()



On 2022-09-06 11:06, Greg Kroah-Hartman wrote:
> On Tue, Sep 06, 2022 at 10:52:28AM -0400, Rodrigo Siqueira Jordao wrote:
>>
>>
>> On 2022-09-02 09:10, Greg Kroah-Hartman wrote:
>>> On Fri, Sep 02, 2022 at 03:01:05PM +0200, Greg Kroah-Hartman wrote:
>>>> When calling debugfs_lookup() the result must have dput() called on it,
>>>> otherwise the memory will leak over time.  Fix this up by properly
>>>> calling dput().
>>>>
>>>> Cc: Harry Wentland <harry.wentland@....com>
>>>> Cc: Leo Li <sunpeng.li@....com>
>>>> Cc: Rodrigo Siqueira <Rodrigo.Siqueira@....com>
>>>> Cc: Alex Deucher <alexander.deucher@....com>
>>>> Cc: "Christian König" <christian.koenig@....com>
>>>> Cc: "Pan, Xinhui" <Xinhui.Pan@....com>
>>>> Cc: David Airlie <airlied@...ux.ie>
>>>> Cc: Daniel Vetter <daniel@...ll.ch>
>>>> Cc: Wayne Lin <Wayne.Lin@....com>
>>>> Cc: hersen wu <hersenxs.wu@....com>
>>>> Cc: Wenjing Liu <wenjing.liu@....com>
>>>> Cc: Patrik Jakobsson <patrik.r.jakobsson@...il.com>
>>>> Cc: Thelford Williams <tdwilliamsiv@...il.com>
>>>> Cc: Fangzhi Zuo <Jerry.Zuo@....com>
>>>> Cc: Yongzhi Liu <lyz_cs@....edu.cn>
>>>> Cc: Mikita Lipski <mikita.lipski@....com>
>>>> Cc: Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>
>>>> Cc: Bhanuprakash Modem <bhanuprakash.modem@...el.com>
>>>> Cc: Sean Paul <seanpaul@...omium.org>
>>>> Cc: amd-gfx@...ts.freedesktop.org
>>>> Cc: dri-devel@...ts.freedesktop.org
>>>> Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
>>>> ---
>>>
>>> Despite a zillion cc: items, I forgot to cc: stable on this.  Can the
>>> maintainer add that here, or do you all want me to resend it with that
>>> item added?
>>>
>>> thanks,
>>>
>>> greg k-h
>>
>> Hi Greg,
>>
>> Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@....com>
>>
>> Is 'Cc: stable@...r.kernel.org' enough here? I can make this change before I
>> merge it into amd-staging-drm-next.
> 
> Yes, please add the cc: stable@ line to the body of the patch, sorry I
> forgot that.
> 

Change applied to amd-staging-drm-next, with the Cc to the stable branch.

Thanks
Siqueira

> thanks,
> 
> greg k-h