Re: [PATCH 2/5] Correctly clean up pci root buses in functionpci_remove_bus()

[Jiang Liu]

Hi Yinghai,
	Good points! It's safe with current implementation because
all root bus hotplug operations are under protection of 
pci_remove_rescan_mutex.

On 2012-3-13 14:24, Yinghai Lu wrote:
> On Sun, Mar 11, 2012 at 10:48 AM, Jiang Liu<liuj97@xxxxxxxxx>  wrote:
> > The function pci_create_root_bus() allocates the pci bus structure,
> > registers the bus device and creates the legacy files for a pci root
> > bus, but returns without setting the is_added flag. The is_added flag
> > for a pci root bus will be set by function pci_scan_child_bus().
>
> > If a pci root bus is destroyed before calling pci_scan_child_bus(),
> > the is_added flag will not be set.
>
> how that can be met?
>
> Do we have pci_remove_rescan_mutex around them?
>
> Yinghai


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