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Date:   Sun, 8 Jan 2017 02:24:59 -0800
From:   Christoph Hellwig <>
To:     Andy Shevchenko <>
Cc:     Jan Kiszka <>,
        Christoph Hellwig <>,
        Greg Kroah-Hartman <>,
        Andy Shevchenko <>,
        "" <>,
        Linux Kernel Mailing List <>
Subject: Re: [PATCH] serial: 8250_lpss: Release Quark MSI vectors on exit

On Thu, Jan 05, 2017 at 12:19:56AM +0200, Andy Shevchenko wrote:
> NAK, check the PCI devres code, please.

Releasing something through devres that wasn't allocated using a devm_* or
pcim_* function isn't expected, and we should fix that instead.
pci_free_irq_vectors is _currently_ implemented by calling
pci_disable_msi and pci_disable_msix, but there is no guarantee for that
in the API.

Your code works by accident, not by design.  If you want the resources
to be auto-released you need to add a proper pcim_alloc_irq_vectors

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