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authorAlex Chiang <achiang@hp.com>2009-03-20 23:56:15 +0300
committerJesse Barnes <jbarnes@virtuousgeek.org>2009-03-21 00:57:32 +0300
commitb73e97d95c168cbc19bd1208c894077f25931ba1 (patch)
tree325b8ecf3358c9980f398166ec6d778c7dc32370 /drivers/pci
parent74710ded8e16fc8dacbb702a5bac1a493d88549a (diff)
downloadlinux-b73e97d95c168cbc19bd1208c894077f25931ba1.tar.xz
PCI: do not initialize bridges more than once
In preparation for PCI core hotplug, we need to ensure that we do not attempt to re-initialize bridges that have already been initialized. We only need to worry about non-root buses, since we will not allow root bus removal. Reported-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> Signed-off-by: Alex Chiang <achiang@hp.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'drivers/pci')
-rw-r--r--drivers/pci/setup-bus.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c
index 170a3eda9dd3..334285a8e237 100644
--- a/drivers/pci/setup-bus.c
+++ b/drivers/pci/setup-bus.c
@@ -144,6 +144,9 @@ static void pci_setup_bridge(struct pci_bus *bus)
struct pci_bus_region region;
u32 l, bu, lu, io_upper16;
+ if (!pci_is_root_bus(bus) && bus->is_added)
+ return;
+
dev_info(&bridge->dev, "PCI bridge, secondary bus %04x:%02x\n",
pci_domain_nr(bus), bus->number);