linux-kernel - Re: [PATCH] drm/sprd: remove redundant error logging

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Message-ID: <CAAfSe-sa2Vw7bUxuRne-fw7GZrHW+7OMj6gCS9jPTamsGF5MBQ@mail.gmail.com>
Date:   Thu, 22 Dec 2022 16:07:54 +0800
From:   Chunyan Zhang <zhang.lyra@...il.com>
To:     Deepak R Varma <drv@...lo.com>
Cc:     David Airlie <airlied@...il.com>, Daniel Vetter <daniel@...ll.ch>,
        Orson Zhai <orsonzhai@...il.com>,
        Baolin Wang <baolin.wang@...ux.alibaba.com>,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        Saurabh Singh Sengar <ssengar@...rosoft.com>,
        Praveen Kumar <kumarpraveen@...ux.microsoft.com>
Subject: Re: [PATCH] drm/sprd: remove redundant error logging

On Sun, 11 Dec 2022 at 21:55, Deepak R Varma <drv@...lo.com> wrote:
>
> A call to platform_get_irq() already prints an error on failure within
> its own implementation. So printing another error based on its return
> value in the caller is redundant and should be removed. The clean up
> also makes if condition block braces unnecessary. Remove that as well.
>
> Issue identified using platform_get_irq.cocci coccicheck script.
>
> Signed-off-by: Deepak R Varma <drv@...lo.com>
> ---
>  drivers/gpu/drm/sprd/sprd_dpu.c | 4 +---
>  1 file changed, 1 insertion(+), 3 deletions(-)
>
> diff --git a/drivers/gpu/drm/sprd/sprd_dpu.c b/drivers/gpu/drm/sprd/sprd_dpu.c
> index 88f4259680f1..db0bcea1d9f4 100644
> --- a/drivers/gpu/drm/sprd/sprd_dpu.c
> +++ b/drivers/gpu/drm/sprd/sprd_dpu.c
> @@ -803,10 +803,8 @@ static int sprd_dpu_context_init(struct sprd_dpu *dpu,
>         }
>
>         ctx->irq = platform_get_irq(pdev, 0);
> -       if (ctx->irq < 0) {
> -               dev_err(dev, "failed to get dpu irq\n");
> +       if (ctx->irq < 0)

Thanks for the patch, it makes sense to me, so
Acked-by: Chunyan Zhang <zhang.lyra@...il.com>

>                 return ctx->irq;
> -       }
>
>         /* disable and clear interrupts before register dpu IRQ. */
>         writel(0x00, ctx->base + REG_DPU_INT_EN);
> --
> 2.34.1
>
>
>