From mboxrd@z Thu Jan  1 00:00:00 1970
From: Christoph Hellwig <hch@lst.de>
Subject: Re: [PATCH] serial: 8250_lpss: Release Quark MSI vectors on exit
Date: Thu, 5 Jan 2017 06:25:46 +0100
Message-ID: <20170105052546.GA10503@lst.de>
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To: Jan Kiszka <jan.kiszka@siemens.com>
Cc: Andy Shevchenko <andy.shevchenko@gmail.com>, Christoph Hellwig <hch@lst.de>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, Andy Shevchenko <andriy.shevchenko@linux.intel.com>, "linux-serial@vger.kernel.org" <linux-serial@vger.kernel.org>, Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
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On Wed, Jan 04, 2017 at 11:46:58PM +0100, Jan Kiszka wrote:
> > I NAKed already third patch related to PCI managed resources (couple
> > of those regarding to pci_irq_* API)/
> > 
> 
> Ah, there are resources that are managed without being allocated
> explicitly that way. Hmm, not very intuitive. Are MSI / MSI-X vectors
> the only such cases?

MSI/MSI-X resources are not managed that way and an explicit call to
pci_free_irq_vectors is required from the API standpoint.  It might not
actually free memory in many cases, but it still is a symmetric API.