From d5cdb67236dba94496de052c9f9f431e1fc658f4 Mon Sep 17 00:00:00 2001 From: Satoru Takeuchi Date: Tue, 12 Sep 2006 10:19:00 -0700 Subject: [PATCH] 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 Signed-off-by: MUNEDA Takahiro Signed-off-by: Satoru Takeuchi Signed-off-by: Kristen Carlson Accardi Signed-off-by: Greg Kroah-Hartman --- drivers/pci/hotplug/acpiphp_glue.c | 17 ++++++++++++++++- 1 file changed, 16 insertions(+), 1 deletion(-) diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c index d36732cd4bad..712f02fb1cbb 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. -- 2.39.5