linux-kernel - Re: [PATCH] drm/amdgpu: fix memory leak

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Message-ID: <e79aa8f8-5198-bfd9-3f69-e7975bac3232@amd.com>
Date:   Fri, 4 Oct 2019 11:26:09 +0000
From:   Nirmoy <nirmodas@....com>
To:     "Koenig, Christian" <Christian.Koenig@....com>,
        "Das, Nirmoy" <Nirmoy.Das@....com>,
        Nirmoy Das <nirmoy.aiemd@...il.com>,
        "Deucher, Alexander" <Alexander.Deucher@....com>
CC:     "airlied@...ux.ie" <airlied@...ux.ie>,
        "dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] drm/amdgpu: fix memory leak


On 10/4/19 1:13 PM, Koenig, Christian wrote:
>
>>> NAK, that is a double free. The bo list entries are freed by
>>> amdgpu_bo_list_put().
>> Thanks, didn't realize that.
> Wait a second, what entries are you talking about?
>
> The entries in the list object are freed when amdgpu_bo_list_put() is
> called, but the temporary info array with the handles needs to be freed
> as well.
>
> And it looks like that is indeed leaked here.
I am talking about the `info` array created by 
amdgpu_bo_create_list_entry_array().
> Regards,
> Christian.
>
>>> Regards,
>>> Christian.
>> Regards,
>>
>> Nirmoy
>>
>>>>      		}
>>>>      
>>>>      		handle = r;