linux-kernel - Re: [PATCH v4 14/14] irqchip/xilinx-intc: Fix potential resource leak

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Date:   Wed, 1 Jul 2020 17:58:06 +0800
From:   Tiezhu Yang <yangtiezhu@...ngson.cn>
To:     Markus Elfring <Markus.Elfring@....de>,
        Thomas Gleixner <tglx@...utronix.de>,
        Jason Cooper <jason@...edaemon.net>,
        Marc Zyngier <maz@...nel.org>,
        Michal Simek <michal.simek@...inx.com>,
        linux-arm-kernel@...ts.infradead.org
Cc:     linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: Re: [PATCH v4 14/14] irqchip/xilinx-intc: Fix potential resource leak

On 07/01/2020 05:42 PM, Markus Elfring wrote:
>> In the function xilinx_intc_of_init(), system resource "irqc->root_domain"
>> was not released in the error case. Thus add jump target for the completion
>> of the desired exception handling.
> Another small wording adjustment:
>    … Thus add a jump target …

OK

>
>
> …
>> +++ b/drivers/irqchip/irq-xilinx-intc.c
> …
>> @@ -250,6 +250,8 @@ static int __init xilinx_intc_of_init(struct device_node *intc,
>>
>>   	return 0;
>>
>> +error_domain_remove:
>> +	irq_domain_remove(irqc->root_domain);
>>   error:
>>   	iounmap(irqc->base);
> …
>
> Can labels like “remove_irq_domain” and “unmap_io” be nicer?

Thank you, I will use "err_domain_remove" and "err_iounmap"
to keep consistence with other patches.

>
> Regards,
> Markus