linux-kernel - Re: [Freedreno] [PATCH] drm/msm/dpu: Fix error return code in dpu_mdss

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Date:   Tue, 17 Nov 2020 11:53:17 -0800
From:   abhinavk@...eaurora.org
To:     Chen Zhou <chenzhou10@...wei.com>
Cc:     robdclark@...il.com, airlied@...ux.ie,
        linux-arm-msm@...r.kernel.org, freedreno@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org
Subject: Re: [Freedreno] [PATCH] drm/msm/dpu: Fix error return code in
 dpu_mdss_init()

On 2020-11-16 18:56, Chen Zhou wrote:
> Fix to return a negative error code from the error handling case
> instead of 0 in function dpu_mdss_init(), as done elsewhere in this
> function.
> 
> Fixes: 070e64dc1bbc ("drm/msm/dpu: Convert to a chained irq chip")
> Reported-by: Hulk Robot <hulkci@...wei.com>
> Signed-off-by: Chen Zhou <chenzhou10@...wei.com>
Reviewed-by: Abhinav Kumar <abhinavk@...eaurora.org>
> ---
>  drivers/gpu/drm/msm/disp/dpu1/dpu_mdss.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_mdss.c
> b/drivers/gpu/drm/msm/disp/dpu1/dpu_mdss.c
> index cd4078807db1..6e600b4ca995 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_mdss.c
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_mdss.c
> @@ -297,8 +297,10 @@ int dpu_mdss_init(struct drm_device *dev)
>  		goto irq_domain_error;
> 
>  	irq = platform_get_irq(pdev, 0);
> -	if (irq < 0)
> +	if (irq < 0) {
> +		ret = irq;
>  		goto irq_error;
> +	}
> 
>  	irq_set_chained_handler_and_data(irq, dpu_mdss_irq,
>  					 dpu_mdss);