linux-kernel - Re: [PATCH] PCI/MSI: pci-xgene-msi: Fix CPU hotplug registration handling

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Message-ID: <20170111103303.5cu4m2f66arucgyp@linutronix.de>
Date:   Wed, 11 Jan 2017 11:33:03 +0100
From:   Sebastian Andrzej Siewior <bigeasy@...utronix.de>
To:     Marc Zyngier <marc.zyngier@....com>
Cc:     linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        Duc Dang <dhdang@....com>, Bjorn Helgaas <bhelgaas@...gle.com>,
        Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [PATCH] PCI/MSI: pci-xgene-msi: Fix CPU hotplug registration
 handling

On 2017-01-11 10:26:47 [+0000], Marc Zyngier wrote:
> The conversion to the new hotplug state machine introduced a regression
> where a successful hotplug registration would be treated as an error,
> effectively disabling the MSI driver forever.
> 
> Fix it by doing the proper check on the return value.
> 
> Fixes: 9c248f8896e6 ("PCI/xgene-msi: Convert to hotplug state machine")
Acked-by: Sebastian Andrzej Siewior <bigeasy@...utronix.de>

Sebastian