linux-kernel - Re: [PATCH] thunderbolt: Add the missed ida_simple_remove() in ring_request

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Date:   Tue, 13 Oct 2020 20:33:28 +0800
From:   Jing Xiangfeng <jingxiangfeng@...wei.com>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
CC:     <andreas.noever@...il.com>, <michael.jamet@...el.com>,
        <mika.westerberg@...ux.intel.com>, <YehezkelShB@...il.com>,
        <gregkh@...uxfoundation.org>, <linux-usb@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] thunderbolt: Add the missed ida_simple_remove() in
 ring_request_msix()



On 2020/10/13 19:43, Andy Shevchenko wrote:
> On Tue, Oct 13, 2020 at 10:45:18AM +0800, Jing Xiangfeng wrote:
>> ring_request_msix() misses to call ida_simple_remove() in an error path.
>> Add the missed function call to fix it.
> ...
>
>>   	ring->irq = pci_irq_vector(ring->nhi->pdev, ring->vector);
>> -	if (ring->irq < 0)
>> +	if (ring->irq < 0) {
>> +		ida_simple_remove(&nhi->msix_ida, ret);
>>   		return ring->irq;
>> +	}
>>   
>>   	irqflags = no_suspend ? IRQF_NO_SUSPEND : 0;
>>   	return request_irq(ring->irq, ring_msix, irqflags, "thunderbolt", ring);
> According to your logic don't you need it here as well?
Hm indeed. Will fix too.

Thanks for your review.
>