linux-kernel - Re: [PATCH] soc: fsl: cpm1: qmc: Fix qmc

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Message-ID: <ec6dfc5b-7713-41c5-87dd-3254578e54fa@kylinos.cn>
Date: Thu, 21 Nov 2024 08:57:15 +0800
From: Pei Xiao <xiaopei01@...inos.cn>
To: Herve Codina <herve.codina@...tlin.com>
Cc: qiang.zhao@....com, christophe.leroy@...roup.eu,
 linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
 dan.carpenter@...aro.org, xiaopeitux@...mail.com
Subject: Re: [PATCH] soc: fsl: cpm1: qmc: Fix qmc_probe() warn missing error
 code ret



在 2024/11/20 19:05, Herve Codina 写道:
> Hi Pei,
> 
> On Wed, 20 Nov 2024 17:38:20 +0800
> Pei Xiao <xiaopei01@...inos.cn> wrote:
> 
>> platform_get_irq() may failed,but ret still equals to 0,
>> will cacuse qmc_probe() return 0 but fail.
>>
>> Reported-by: Dan Carpenter <dan.carpenter@...aro.org>
>> Closes: https://lore.kernel.org/r/202411051350.KNy6ZIWA-lkp@intel.com/
>> Fixes: 3178d58e0b97 ("soc: fsl: cpm1: Add support for QMC")
>> Signed-off-by: Pei Xiao <xiaopei01@...inos.cn>
>> ---
>>   drivers/soc/fsl/qe/qmc.c | 4 +++-
>>   1 file changed, 3 insertions(+), 1 deletion(-)
>>
>> diff --git a/drivers/soc/fsl/qe/qmc.c b/drivers/soc/fsl/qe/qmc.c
>> index 19cc581b06d0..a78768cd6007 100644
>> --- a/drivers/soc/fsl/qe/qmc.c
>> +++ b/drivers/soc/fsl/qe/qmc.c
>> @@ -2004,8 +2004,10 @@ static int qmc_probe(struct platform_device *pdev)
>>   
>>   	/* Set the irq handler */
>>   	irq = platform_get_irq(pdev, 0);
>> -	if (irq < 0)
>> +	if (irq < 0) {
>> +		ret = -EINVAL;
>>   		goto err_exit_xcc;
>> +	}
>>   	ret = devm_request_irq(qmc->dev, irq, qmc_irq_handler, 0, "qmc", qmc);
>>   	if (ret < 0)
>>   		goto err_exit_xcc;
> 
> I already send a fix:
> https://lore.kernel.org/all/20241105145623.401528-1-herve.codina@bootlin.com/
> 

ok, I'm so sorry for send repeated patch.

Tnanks!
Pei.
> And it is available in the following PR done by Christophe:
> https://lore.kernel.org/all/c3c4961b-fe2a-4fcc-a7a1-f8b5352e09a2@csgroup.eu/
> 
> Best regards,
> Hervé