[PATCH] acpi_pcihp: Fix programming _HPP values

This patch fixes the problem that hotplug parameters are not programed
when PCI cards are hot-added by ACPIPHP, SHPCHP and PCIEHP driver. The
pci_dev structure being hot-added is not bound to ACPI handle, so we
need to trace PCI bus tree to find ACPI handle.

Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Cc: Kristen Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c
index 2a83e6bdab6a..4b0988e93806 100644
--- a/drivers/pci/hotplug/acpiphp_glue.c
+++ b/drivers/pci/hotplug/acpiphp_glue.c
@@ -286,7 +286,7 @@ static void decode_hpp(struct acpiphp_bridge *bridge)
 {
         acpi_status status;
 
-        status = acpi_get_hp_params_from_firmware(bridge->pci_dev, &bridge->hpp);
+        status = acpi_get_hp_params_from_firmware(bridge->pci_bus, &bridge->hpp);
         if (ACPI_FAILURE(status)) {
                 /* use default numbers */
                 bridge->hpp.cache_line_size = 0x10;
@@ -1250,6 +1250,7 @@ static void acpiphp_set_hpp_values(acpi_handle handle, struct pci_bus *bus)
 
         memset(&bridge, 0, sizeof(bridge));
         bridge.handle = handle;
+        bridge.pci_bus = bus;
         bridge.pci_dev = bus->self;
         decode_hpp(&bridge);
         list_for_each_entry(dev, &bus->devices, bus_list)