linux-kernel - Re: [PATCH] drivers: iio: remove dead code in at91_adc

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Date:   Fri, 10 Mar 2023 17:58:16 +0800
From:   Dongliang Mu <dzm91@...t.edu.cn>
To:     Claudiu.Beznea@...rochip.com
Cc:     chengziqiu@...t.edu.cn, eugen.hristev@...labora.com,
        jic23@...nel.org, lars@...afoo.de, Nicolas.Ferre@...rochip.com,
        alexandre.belloni@...tlin.com, linux-iio@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] drivers: iio: remove dead code in at91_adc_probe



On 3/10/23 17:55, Claudiu.Beznea@...rochip.com wrote:
> On 10.03.2023 11:41, 慕冬亮 wrote:
>> EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe
>>
>>> -----原始邮件-----
>>> 发件人: Claudiu.Beznea@...rochip.com
>>> 发送时间: 2023-03-10 17:14:56 (星期五)
>>> 收件人: chengziqiu@...t.edu.cn, eugen.hristev@...labora.com, jic23@...nel.org, lars@...afoo.de, Nicolas.Ferre@...rochip.com, alexandre.belloni@...tlin.com
>>> 抄送: dzm91@...t.edu.cn, linux-iio@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
>>> 主题: Re: [PATCH] drivers: iio: remove dead code in at91_adc_probe
>>>
>>> On 09.03.2023 17:05, Cheng Ziqiu wrote:
>>>> >From the comment of platform_get_irq, it only returns non-zero IRQ
>>>> number and negative error number, other than zero.
>>>>
>>>> Fix this by removing the if condition.
>>>>
>>>> Signed-off-by: Cheng Ziqiu <chengziqiu@...t.edu.cn>
>>>
>>> I see From and 1st SoB matches but
>>>
>>>> Signed-off-by: Dongliang Mu <dzm91@...t.edu.cn>
>>>
>>> this SoB seems extra. What is the contribution of Dongliang Mu to this patch?
>>
>> I reviewed this patch locally since this student is the first time to submit patch to the kernel mailing list.
> 
> Then please use "Reviewed-by" tag.

Sure. I will ask him to send a v2 patch.

> 
>>
>> In my lab, I encourage all students to fix kernel issues. However, their patches should be reviewed by me first before sending the mailing list.
>>
>>>
>>>> ---
>>>>   drivers/iio/adc/at91-sama5d2_adc.c | 6 +-----
>>>>   1 file changed, 1 insertion(+), 5 deletions(-)
>>>>
>>>> diff --git a/drivers/iio/adc/at91-sama5d2_adc.c b/drivers/iio/adc/at91-sama5d2_adc.c
>>>> index 50d02e5fc6fc..168399092590 100644
>>>> --- a/drivers/iio/adc/at91-sama5d2_adc.c
>>>> +++ b/drivers/iio/adc/at91-sama5d2_adc.c
>>>> @@ -2400,12 +2400,8 @@ static int at91_adc_probe(struct platform_device *pdev)
>>>>          st->dma_st.phys_addr = res->start;
>>>>
>>>>          st->irq = platform_get_irq(pdev, 0);
>>>> -       if (st->irq <= 0) {
>>>> -               if (!st->irq)
>>>> -                       st->irq = -ENXIO;
>>>> -
>>>> +       if (st->irq < 0)
>>>>                  return st->irq;
>>>> -       }
>>>>
>>>>          st->per_clk = devm_clk_get(&pdev->dev, "adc_clk");
>>>>          if (IS_ERR(st->per_clk))
>>>> --
>>>> 2.34.1
>>>>
>>>
>>
>>
>> --
>> Best regards,
>> Dongliang Mu
>