linux-kernel - Re: [PATCH] spi: pca2xx-pci: Fix an issue about missing call to 'pci_free_irq

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Date:   Mon, 15 Feb 2021 11:41:50 +0200
From:   Jarkko Nikula <jarkko.nikula@...ux.intel.com>
To:     Jan Kiszka <jan.kiszka@...mens.com>,
        Dejin Zheng <zhengdejin5@...il.com>, daniel@...que.org,
        haojian.zhuang@...il.com, robert.jarzmik@...e.fr,
        broonie@...nel.org, andriy.shevchenko@...ux.intel.com,
        linux-spi@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org
Subject: Re: [PATCH] spi: pca2xx-pci: Fix an issue about missing call to
 'pci_free_irq_vectors()'

On 2/15/21 11:23 AM, Jan Kiszka wrote:
> On 14.02.21 15:57, Dejin Zheng wrote:
>> Call to 'pci_free_irq_vectors()' are missing both in the error handling
>> path of the probe function, and in the remove function. So add them.
>>
>> Fixes: 64e02cb0bdfc7c ("spi: pca2xx-pci: Allow MSI")
>> Signed-off-by: Dejin Zheng <zhengdejin5@...il.com>
>> ---
>>   drivers/spi/spi-pxa2xx-pci.c | 13 ++++++++++---
>>   1 file changed, 10 insertions(+), 3 deletions(-)
>>
>> diff --git a/drivers/spi/spi-pxa2xx-pci.c b/drivers/spi/spi-pxa2xx-pci.c
>> index 14fc41ed2361..1ec840e78ff4 100644
>> --- a/drivers/spi/spi-pxa2xx-pci.c
>> +++ b/drivers/spi/spi-pxa2xx-pci.c
>> @@ -254,8 +254,10 @@ static int pxa2xx_spi_pci_probe(struct pci_dev *dev,
>>   	snprintf(buf, sizeof(buf), "pxa2xx-spi.%d", ssp->port_id);
>>   	ssp->clk = clk_register_fixed_rate(&dev->dev, buf , NULL, 0,
>>   					   c->max_clk_rate);
>> -	 if (IS_ERR(ssp->clk))
>> -		return PTR_ERR(ssp->clk);
>> +	if (IS_ERR(ssp->clk)) {
>> +		ret = PTR_ERR(ssp->clk);
>> +		goto err_irq;
>> +	}
>>   
>>   	memset(&pi, 0, sizeof(pi));
>>   	pi.fwnode = dev->dev.fwnode;
>> @@ -268,12 +270,16 @@ static int pxa2xx_spi_pci_probe(struct pci_dev *dev,
>>   	pdev = platform_device_register_full(&pi);
>>   	if (IS_ERR(pdev)) {
>>   		clk_unregister(ssp->clk);
>> -		return PTR_ERR(pdev);
>> +		ret = PTR_ERR(pdev);
>> +		goto err_irq;
>>   	}
>>   
>>   	pci_set_drvdata(dev, pdev);
>>   
>>   	return 0;
>> +err_irq:
>> +	pci_free_irq_vectors(dev);
>> +	return ret;
>>   }
>>   
>>   static void pxa2xx_spi_pci_remove(struct pci_dev *dev)
>> @@ -283,6 +289,7 @@ static void pxa2xx_spi_pci_remove(struct pci_dev *dev)
>>   
>>   	spi_pdata = dev_get_platdata(&pdev->dev);
>>   
>> +	pci_free_irq_vectors(dev);
>>   	platform_device_unregister(pdev);
>>   	clk_unregister(spi_pdata->ssp.clk);
>>   }
>>
> 
> Reviewed-by: Jan Kiszka <jan.kiszka@...mens.com>
> 
Please fix pca2xx-pci -> pxa2xx-pci in the subject line. With that 
change you may add:

Reviewed-by: Jarkko Nikula <jarkko.nikula@...ux.intel.com>