When a PCI device is disabled via pci_disable_device(), it's still
left decoding its BAR resource ranges even though its driver
will have likely released those regions (and may even have
unloaded). pci_enable_device() already explicitly enables
BAR resource decode for the device being enabled. This patch
disables resource decode for the PCI device being disabled,
making it symmetric with the enable call.
I saw this while doing something else, not because of a
problem report. Still, seems to be the correct thing to do.
I'm just wondering how this will react with VGA devices being run by
fbdev or the drm, I know the DRM never calls pci_disable_device, as
the card might require the bars enabled so it can do VGA, and which if
it is your primary VGA card, can cause you all kinds of troubles...
(like losing text mode)..
Alan Cox mentioned this somewhere before in relation to video cards..
Dave.
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