linux-kernel - Re: [PATCH 4.4 110/268] nvme-pci: Fix nvme queue cleanup if IRQ setup fails

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Date:   Wed, 13 Jun 2018 10:56:32 -0600
From:   Keith Busch <keith.busch@...el.com>
To:     Ben Hutchings <ben.hutchings@...ethink.co.uk>
Cc:     Jianchao Wang <jianchao.w.wang@...cle.com>, stable@...r.kernel.org,
        Sasha Levin <alexander.levin@...rosoft.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 4.4 110/268] nvme-pci: Fix nvme queue cleanup if IRQ
 setup fails

On Wed, Jun 13, 2018 at 05:37:35PM +0100, Ben Hutchings wrote:
> On Wed, 2018-06-13 at 10:30 -0600, Keith Busch wrote:
> > Thank you very much the catching that. This particular patch is indeed
> > not correct without the following:
> > 
> >   161b8be2bd6ab ("nvme-pci: initialize queue memory before interrupts")
> 
> Oh, now I see.  Do you think that commit is suitable for stable
> branches?

Yes, we can safely include that commit 4.4-stable. The scenario it fixes
isn't very common in 4.4, but it could happen with quirky hardware or
legacy interrupts.