Re: [PATCH] PCI: kirin: Use PTR_ERR_OR_ZERO() to simplify code

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On 2019/11/18 20:46, Andrew Murray wrote:
> On Mon, Nov 18, 2019 at 07:30:46PM +0800, zhengbin wrote:
>> Fixes coccicheck warning:
>>
>> drivers/pci/controller/dwc/pcie-kirin.c:141:1-3: WARNING: PTR_ERR_OR_ZERO can be used
>> drivers/pci/controller/dwc/pcie-kirin.c:177:1-3: WARNING: PTR_ERR_OR_ZERO can be used
>>
>> Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
>> Signed-off-by: zhengbin <zhengbin13@xxxxxxxxxx>
>> ---
>>  drivers/pci/controller/dwc/pcie-kirin.c | 5 +----
>>  1 file changed, 1 insertion(+), 4 deletions(-)
>>
>> diff --git a/drivers/pci/controller/dwc/pcie-kirin.c b/drivers/pci/controller/dwc/pcie-kirin.c
>> index c19617a..5b2131f 100644
>> --- a/drivers/pci/controller/dwc/pcie-kirin.c
>> +++ b/drivers/pci/controller/dwc/pcie-kirin.c
>> @@ -138,10 +138,7 @@ static long kirin_pcie_get_clk(struct kirin_pcie *kirin_pcie,
>>  		return PTR_ERR(kirin_pcie->apb_sys_clk);
>>
>>  	kirin_pcie->pcie_aclk = devm_clk_get(dev, "pcie_aclk");
>> -	if (IS_ERR(kirin_pcie->pcie_aclk))
>> -		return PTR_ERR(kirin_pcie->pcie_aclk);
>> -
>> -	return 0;
>> +	return PTR_ERR_OR_ZERO(kirin_pcie->pcie_aclk);
>>  }
>>
>>  static long kirin_pcie_get_resource(struct kirin_pcie *kirin_pcie,
> Thanks for these patches. Though if you resend these next time you ought
> to put them in a single patch series with a cover letter.
>
> I'm not sure on the views of maintainers for other parts of the kernel
> however for PCI this type of change has previously been rejected, see:
>
> https://lkml.org/lkml/2019/5/31/535

got that, thanks. please ignore other pci patches.

>
> I guess coccicheck isn't aware of this.
>
> Thanks,
>
> Andrew Murray
>
>> --
>> 2.7.4
>>
> .
>




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