PCI: add host bridge release support

We need a hook to release host bridge resources allocated when creating
root bus.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/include/linux/pci.h b/include/linux/pci.h
index 8f4f29d2b606..17b7b5b01b4a 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -378,9 +378,14 @@ struct pci_host_bridge {
         struct device dev;
         struct pci_bus *bus;            /* root bus */
         struct list_head windows;       /* pci_host_bridge_windows */
+        void (*release_fn)(struct pci_host_bridge *);
+        void *release_data;
 };
 
 #define to_pci_host_bridge(n) container_of(n, struct pci_host_bridge, dev)
+void pci_set_host_bridge_release(struct pci_host_bridge *bridge,
+                     void (*release_fn)(struct pci_host_bridge *),
+                     void *release_data);
 
 /*
  * The first PCI_BRIDGE_RESOURCE_NUM PCI bus resources (those that correspond