PCI: fix wrong assumption in pci_get_interrupt_pin
authorKenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Tue, 17 Feb 2009 05:15:45 +0000 (14:15 +0900)
committerJesse Barnes <jbarnes@virtuousgeek.org>
Fri, 20 Mar 2009 17:48:04 +0000 (10:48 -0700)
commitc2a3072e010943ac749794622f26b3ef54de25be
tree3cb9290ded157827f3cc48571e34cc5b10cba55f
parentf92d4e29d785f1d4217dee7f1ae6ff7140547ed5
PCI: fix wrong assumption in pci_get_interrupt_pin

Current pci_get_interrupt_pin() seems to have an assumption that
pci_bus->self is NULL on the root pci bus. But it might not be true on
some platforms. Because of this wrong assumption, current
pci_get_interrupt_pin() might cause endless loop. We must check
pci_bus->parent instead.

Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
drivers/pci/pci.c