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

[Greg KH <greg@kroah.com>]

On Mon, Aug 09, 2004 at 11:34:46AM -0500, John Rose wrote:
> 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.

Ah, good point.  We should probably fix that up and make it a struct
pci_dev.  Or just make a release function for the struct device we
create.  Either way is fine for me.

thanks,

greg k-h