it will call new added pci_stop_and_remove_bus() to stop/remove pci root bus.
also checking if that pci_root_bus get removed already in bus remove in /sys
Signed-off-by: Yinghai Lu <yinghai@xxxxxxxxxx>
Cc: Len Brown <lenb@xxxxxxxxxx>
Cc: linux-acpi@xxxxxxxxxxxxxxx
---
drivers/acpi/pci_root.c | 14 ++++++++++++++
1 files changed, 14 insertions(+), 0 deletions(-)
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index 7aff631..b38e347 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -643,10 +643,24 @@ static int acpi_pci_root_remove(struct acpi_device *device, int type)
{
struct acpi_pci_root *root = acpi_driver_data(device);
+ /* that root bus could be removed already */
+ if (!pci_find_bus(root->segment, root->secondary.start)) {
+ dev_printk(KERN_DEBUG, &device->dev,
+ "freeing acpi_pci_root, but pci root bus was removed before");
+ goto out;
+ }
+
device_set_run_wake(root->bus->bridge, false);
pci_acpi_remove_bus_pm_notifier(device);
+ dev_printk(KERN_DEBUG, &device->dev,
+ "freeing acpi_pci_root, will remove pci root bus at first");
+ pci_stop_and_remove_bus(root->bus);
+
+out:
+ list_del(&root->node);
kfree(root);
+
return 0;
}
--
1.7.7
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