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Re: [PATCH] PCI: dwc: dra7xx: fix error return code in dra7xx_pcie_probe()

Started byBjorn Helgaas <helgaas@kernel.org>
First post2017-08-22 22:40 +0200
Last post2017-08-22 23:10 +0200
Articles 2 — 2 participants

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  Re: [PATCH] PCI: dwc: dra7xx: fix error return code in  dra7xx_pcie_probe() Bjorn Helgaas <helgaas@kernel.org> - 2017-08-22 22:40 +0200
    Re: [PATCH] PCI: dwc: dra7xx: fix error return code in  dra7xx_pcie_probe() "Gustavo A. R. Silva" <gustavo@embeddedor.com> - 2017-08-22 23:10 +0200

#1717817 — Re: [PATCH] PCI: dwc: dra7xx: fix error return code in dra7xx_pcie_probe()

FromBjorn Helgaas <helgaas@kernel.org>
Date2017-08-22 22:40 +0200
SubjectRe: [PATCH] PCI: dwc: dra7xx: fix error return code in dra7xx_pcie_probe()
Message-ID<uho7U-7sy-23@gated-at.bofh.it>
On Wed, Aug 09, 2017 at 11:16:03AM -0500, Gustavo A. R. Silva wrote:
> platform_get_irq() returns an error code, but the pci-dra7xx driver
> ignores it and always returns -EINVAL. This is not correct and,
> prevents -EPROBE_DEFER from being propagated properly.
> 
> Print and propagate the return value of platform_get_irq on failure.
> 
> This issue was detected with the help of Coccinelle.
> 
> Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>

Applied with Kishon's ack to pci/host-dra7xx for v4.14, thanks!

> ---
>  drivers/pci/dwc/pci-dra7xx.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/pci/dwc/pci-dra7xx.c b/drivers/pci/dwc/pci-dra7xx.c
> index f2fc5f4..f58e1b4 100644
> --- a/drivers/pci/dwc/pci-dra7xx.c
> +++ b/drivers/pci/dwc/pci-dra7xx.c
> @@ -616,8 +616,8 @@ static int __init dra7xx_pcie_probe(struct platform_device *pdev)
>  
>  	irq = platform_get_irq(pdev, 0);
>  	if (irq < 0) {
> -		dev_err(dev, "missing IRQ resource\n");
> -		return -EINVAL;
> +		dev_err(dev, "missing IRQ resource: %d\n", irq);
> +		return irq;
>  	}
>  
>  	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "ti_conf");
> -- 
> 2.5.0
> 

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#1717839

From"Gustavo A. R. Silva" <gustavo@embeddedor.com>
Date2017-08-22 23:10 +0200
Message-ID<uhoAV-7V4-5@gated-at.bofh.it>
In reply to#1717817
Hi Bjorn,

On 08/22/2017 03:37 PM, Bjorn Helgaas wrote:
> On Wed, Aug 09, 2017 at 11:16:03AM -0500, Gustavo A. R. Silva wrote:
>> platform_get_irq() returns an error code, but the pci-dra7xx driver
>> ignores it and always returns -EINVAL. This is not correct and,
>> prevents -EPROBE_DEFER from being propagated properly.
>>
>> Print and propagate the return value of platform_get_irq on failure.
>>
>> This issue was detected with the help of Coccinelle.
>>
>> Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
>
> Applied with Kishon's ack to pci/host-dra7xx for v4.14, thanks!
>

Glad to help. :)

>> ---
>>  drivers/pci/dwc/pci-dra7xx.c | 4 ++--
>>  1 file changed, 2 insertions(+), 2 deletions(-)
>>
>> diff --git a/drivers/pci/dwc/pci-dra7xx.c b/drivers/pci/dwc/pci-dra7xx.c
>> index f2fc5f4..f58e1b4 100644
>> --- a/drivers/pci/dwc/pci-dra7xx.c
>> +++ b/drivers/pci/dwc/pci-dra7xx.c
>> @@ -616,8 +616,8 @@ static int __init dra7xx_pcie_probe(struct platform_device *pdev)
>>
>>  	irq = platform_get_irq(pdev, 0);
>>  	if (irq < 0) {
>> -		dev_err(dev, "missing IRQ resource\n");
>> -		return -EINVAL;
>> +		dev_err(dev, "missing IRQ resource: %d\n", irq);
>> +		return irq;
>>  	}
>>
>>  	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "ti_conf");
>> --
>> 2.5.0
>>

-- 
Gustavo A. R. Silva

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