linux-kernel - Re: [PATCH] drm/amd/amdgpu: cleanup the code style a bit

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Date:   Mon, 15 Nov 2021 12:49:02 +0100
From:   Christian König <ckoenig.leichtzumerken@...il.com>
To:     Bernard Zhao <bernard@...o.com>,
        Alex Deucher <alexander.deucher@....com>,
        Christian König <christian.koenig@....com>,
        "Pan, Xinhui" <Xinhui.Pan@....com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Jingwen Chen <Jingwen.Chen2@....com>,
        Candice Li <candice.li@....com>,
        John Clements <john.clements@....com>,
        Monk liu <monk.liu@....com>,
        Peng Ju Zhou <PengJu.Zhou@....com>,
        Jiawei Gu <Jiawei.Gu@....com>,
        Bokun Zhang <bokun.zhang@....com>,
        Zhigang Luo <zhigang.luo@....com>,
        Lee Jones <lee.jones@...aro.org>,
        amd-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] drm/amd/amdgpu: cleanup the code style a bit

Am 15.11.21 um 08:07 schrieb Bernard Zhao:
> This change is to cleanup the code style a bit.

To be honest I think the old style looked better. It took me a moment to 
validate this now.

What you could to instead is to have goto style error handling which 
would make this a bit more cleaner I think.

Christian.

>
> Signed-off-by: Bernard Zhao <bernard@...o.com>
> ---
>   drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c | 10 ++++++----
>   1 file changed, 6 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c
> index 04cf9b207e62..90070b41136a 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c
> @@ -286,12 +286,14 @@ static int amdgpu_virt_init_ras_err_handler_data(struct amdgpu_device *adev)
>   		return -ENOMEM;
>   
>   	bps = kmalloc_array(align_space, sizeof((*data)->bps), GFP_KERNEL);
> +	if (!bps) {
> +		kfree(*data);
> +		return -ENOMEM;
> +	}
>   	bps_bo = kmalloc_array(align_space, sizeof((*data)->bps_bo), GFP_KERNEL);
> -
> -	if (!bps || !bps_bo) {
> -		kfree(bps);
> -		kfree(bps_bo);
> +	if (!bps_bo) {
>   		kfree(*data);
> +		kfree(bps);
>   		return -ENOMEM;
>   	}
>