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authorSatoru Takeuchi <takeuchi_satoru@jp.fujitsu.com>2006-09-12 10:19:00 -0700
committerGreg Kroah-Hartman <gregkh@suse.de>2006-09-26 17:43:54 -0700
commitd5cdb67236dba94496de052c9f9f431e1fc658f4 (patch)
tree7aad7540e86bfd339766c02aba2536c138bd8649 /drivers
parent0dad3510ee82bcf8a380b81a2184a664a911ef9c (diff)
downloadop-kernel-dev-d5cdb67236dba94496de052c9f9f431e1fc658f4.zip
op-kernel-dev-d5cdb67236dba94496de052c9f9f431e1fc658f4.tar.gz
acpiphp: disable bridges
Currently acpiphp calls pci_enable_device() against all hot-added bridges, but acpiphp does not call pci_disable_device() against them in hot-remove. So ioapic hot-remove would fail. This patch fixes this issue. Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> Signed-off-by: MUNEDA Takahiro <muneda.takahiro@jp.fujitsu.com> Signed-off-by: Satoru Takeuchi <takeuchi_satoru@jp.fujitsu.com> Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/pci/hotplug/acpiphp_glue.c17
1 files changed, 16 insertions, 1 deletions
diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c
index d36732c..712f02f 100644
--- a/drivers/pci/hotplug/acpiphp_glue.c
+++ b/drivers/pci/hotplug/acpiphp_glue.c
@@ -1105,6 +1105,16 @@ static int enable_device(struct acpiphp_slot *slot)
return retval;
}
+static void disable_bridges(struct pci_bus *bus)
+{
+ struct pci_dev *dev;
+ list_for_each_entry(dev, &bus->devices, bus_list) {
+ if (dev->subordinate) {
+ disable_bridges(dev->subordinate);
+ pci_disable_device(dev);
+ }
+ }
+}
/**
* disable_device - disable a slot
@@ -1129,8 +1139,13 @@ static int disable_device(struct acpiphp_slot *slot)
func->bridge = NULL;
}
- if (func->pci_dev)
+ if (func->pci_dev) {
pci_stop_bus_device(func->pci_dev);
+ if (func->pci_dev->subordinate) {
+ disable_bridges(func->pci_dev->subordinate);
+ pci_disable_device(func->pci_dev);
+ }
+ }
acpiphp_bus_trim(func->handle);
/* try to remove anyway.
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