linux-kernel - Re: [PATCH v2 2/3] msi: always unregister ->msi_kset within free_msi

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Message-ID: <20130926151749.GE12301@hmsreliant.think-freely.org>
Date:	Thu, 26 Sep 2013 11:17:49 -0400
From:	Neil Horman <nhorman@...driver.com>
To:	Veaceslav Falico <vfalico@...hat.com>
Cc:	linux-pci@...r.kernel.org, Bjorn Helgaas <bhelgaas@...gle.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 2/3] msi: always unregister ->msi_kset within
 free_msi_irqs()

On Thu, Sep 26, 2013 at 04:11:14PM +0200, Veaceslav Falico wrote:
> Currently we create and populate ->msi_kset while allocating irqs in
> populate_msi_sysfs(), however if it fails and/or we want to free the
> entries - we don't always remove it, and we might have problems if we've
> failed to allocate irqs and try it again.
> 
> To fix that, move the unregister part to free_msi_irqs() and remove already
> existing ones. Also, verify if it was actually created - we don't always
> call free_msi_irqs() after populate_msi_sysfs().
> 
> CC: Bjorn Helgaas <bhelgaas@...gle.com>
> CC: Neil Horman <nhorman@...driver.com>
> CC: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> CC: linux-pci@...r.kernel.org
> CC: linux-kernel@...r.kernel.org
> Signed-off-by: Veaceslav Falico <vfalico@...hat.com>
Acked-by: Neil Horman <nhorman@...driver.com>
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