linux-kernel - Re: [PATCH -next] usb: host: ohci-tmio: Remove redundant if statement

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Date:   Thu, 19 May 2022 09:39:26 +0800
From:   "lizhengyu (E)" <lizhengyu3@...wei.com>
To:     Dmitry Baryshkov <dbaryshkov@...il.com>
CC:     Alan Stern <stern@...land.harvard.edu>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-usb <linux-usb@...r.kernel.org>,
        kernel list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH -next] usb: host: ohci-tmio: Remove redundant if statement

On Wed, 18 May 2022 18:30:15 +0300, Dmitry Baryshkov 
<dbaryshkov@...il.com> wrote:
> ср, 18 мая 2022 г. в 05:45, Li Zhengyu <lizhengyu3@...wei.com>:
>> (ret == 0) is true when (ret) is false, so remove it.
>> Also remove unreachable code.
>>
>> Signed-off-by: Li Zhengyu <lizhengyu3@...wei.com>
>> ---
>>   drivers/usb/host/ohci-tmio.c | 6 +-----
>>   1 file changed, 1 insertion(+), 5 deletions(-)
>>
>> diff --git a/drivers/usb/host/ohci-tmio.c b/drivers/usb/host/ohci-tmio.c
>> index 49539b9f0e94..6bcb0cb53f7c 100644
>> --- a/drivers/usb/host/ohci-tmio.c
>> +++ b/drivers/usb/host/ohci-tmio.c
>> @@ -243,12 +243,8 @@ static int ohci_hcd_tmio_drv_probe(struct platform_device *dev)
>>          ret = usb_add_hcd(hcd, irq, 0);
>>          if (ret)
>>                  goto err_add_hcd;
>> -
>>          device_wakeup_enable(hcd->self.controller);
> I think the proper patch would be to check the return value of
> device_wakeup_enable(), so NAK.
>
>> -       if (ret == 0)
>> -               return ret;
>> -
>> -       usb_remove_hcd(hcd);
>> +       return ret;
>>
>>   err_add_hcd:
>>          tmio_stop_hc(dev);
>> --
>> 2.17.1
>>
>
Thanks, I will fix it soon.