The attached patch makes pci_set_power_state() check the PM register version
and ignore non-version 2 registers. Trampling on earlier version PM registers
such as are sported by the Promise 20269 IDE card can cause the system to
hang.
Signed-Off-By: David Howells <dhowells@redhat.com>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>