Re: [PATCH v2 2/3] msi: always unregister ->msi_kset withinfree_msi_irqs()

From: Neil Horman
Date: Thu Sep 26 2013 - 11:18:16 EST


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@xxxxxxxxxx>
> CC: Neil Horman <nhorman@xxxxxxxxxxxxx>
> CC: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
> CC: linux-pci@xxxxxxxxxxxxxxx
> CC: linux-kernel@xxxxxxxxxxxxxxx
> Signed-off-by: Veaceslav Falico <vfalico@xxxxxxxxxx>
Acked-by: Neil Horman <nhorman@xxxxxxxxxxxxx>
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