There is no need to write IO and memory space window Host PCI bridge registers before doing anything else. Just use its default values which should be ok. Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com> Reviewed-by: NeilBrown <neil@brown.name> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>