PCI: fix wrong assumption in pci_common_swizzle
authorKenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Tue, 17 Feb 2009 05:16:13 +0000 (14:16 +0900)
committerJesse Barnes <jbarnes@virtuousgeek.org>
Fri, 20 Mar 2009 17:48:05 +0000 (10:48 -0700)
commitc74d724462d1845535667f4d3f720e02e3432e53
tree2b41310b6710ee40fd26422a22cdb7e73fe80c1b
parentc2a3072e010943ac749794622f26b3ef54de25be
PCI: fix wrong assumption in pci_common_swizzle

Current pci_common_swizzle() seems to have a assumption that
pci_bus->self is NULL on the pci root bus. But it might not be true on
some platforms. Because of this wrong assumption, pci_common_swizzle()
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