Re: [Pcihpd-discuss] struct pci_bus, no release() function?

[John Rose <johnrose@austin.ibm.com>]

On Mon, 2004-08-09 at 01:45, Greg KH wrote:
> On Mon, Aug 02, 2004 at 03:15:28PM -0500, John Rose wrote:
> > At probe time, pci_scan_bus_parented() allocates and registers a struct
> > device for each PCI bus it scans.  This generic device structure never
> > gets assigned a "release" function.  
> > 
> > Attempts to unregister such a PCI Bus at runtime result in a kernel
> > message like:
> > Device 'pci0001:00' does not have a release() function, it is broken and
> > must be fixed.
> 
> You're right, that should be fixed.  Care to send a patch?  Should just
> be a 1 line change.  You can tell no one else has tried to remove a root
> bus device before...
> 
> > Are architectures free to assign their own release function for
> > "devices" associated with struct pci_bus?
> 
> Why would they want to?  It should just be set to pci_release_dev, like
> all other struct pci_dev devices are, right?

Root buses don't have an associated pci_dev struct, so this function
won't do.  Is that specific to ppc64?  Regardless, seems like we need a
special release func for this case.

Thanks-
John