linux-kernel - Re: [PATCH v2] usb: dwc3: host: remove dead code in dwc3_host_get

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Date:   Thu, 23 Mar 2023 13:29:31 +0300
From:   Sergei Shtylyov <sergei.shtylyov@...il.com>
To:     Mingxuan Xiang <mx_xiang@...t.edu.cn>,
        Thinh Nguyen <Thinh.Nguyen@...opsys.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     hust-os-kernel-patches@...glegroups.com,
        Dongliang Mu <dzm91@...t.edu.cn>, linux-usb@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] usb: dwc3: host: remove dead code in
 dwc3_host_get_irq()

On 3/23/23 12:53 PM, Mingxuan Xiang wrote:

> platform_get_irq() no longer returns 0, so there is no
> need to check whether the return value is 0.
> 
> Signed-off-by: Mingxuan Xiang <mx_xiang@...t.edu.cn>
> ---
> v1->v2: remove redundant goto
>  drivers/usb/dwc3/host.c | 4 ----
>  1 file changed, 4 deletions(-)
> 
> diff --git a/drivers/usb/dwc3/host.c b/drivers/usb/dwc3/host.c
> index f6f13e7f1ba1..ca1e8294e835 100644
> --- a/drivers/usb/dwc3/host.c
> +++ b/drivers/usb/dwc3/host.c
> @@ -54,12 +54,8 @@ static int dwc3_host_get_irq(struct dwc3 *dwc)
>  	irq = platform_get_irq(dwc3_pdev, 0);
>  	if (irq > 0) {
>  		dwc3_host_fill_xhci_irq_res(dwc, irq, NULL);
> -		goto out;
>  	}

   Now drop {} please. :-)

>  
> -	if (!irq)
> -		irq = -EINVAL;
> -
>  out:
>  	return irq;
>  }

MBR, Sergey