Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes...
[sfrench/cifs-2.6.git] / drivers / pci / hotplug / acpiphp_glue.c
index 9342c848db29f8888b82000c6defcf07a435b968..a3e4705dd8f0f11ef477ddfeaec284990780c87f 100644 (file)
@@ -705,9 +705,10 @@ cleanup_p2p_bridge(acpi_handle handle, u32 lvl, void *context, void **rv)
        acpi_walk_namespace(ACPI_TYPE_DEVICE, handle, (u32)1,
                                cleanup_p2p_bridge, NULL, NULL);
 
        acpi_walk_namespace(ACPI_TYPE_DEVICE, handle, (u32)1,
                                cleanup_p2p_bridge, NULL, NULL);
 
-       if (!(bridge = acpiphp_handle_to_bridge(handle)))
-               return AE_OK;
-       cleanup_bridge(bridge);
+       bridge = acpiphp_handle_to_bridge(handle);
+       if (bridge)
+               cleanup_bridge(bridge);
+
        return AE_OK;
 }
 
        return AE_OK;
 }
 
@@ -720,9 +721,19 @@ static void remove_bridge(acpi_handle handle)
        acpi_walk_namespace(ACPI_TYPE_DEVICE, handle,
                                (u32)1, cleanup_p2p_bridge, NULL, NULL);
 
        acpi_walk_namespace(ACPI_TYPE_DEVICE, handle,
                                (u32)1, cleanup_p2p_bridge, NULL, NULL);
 
+       /*
+        * On root bridges with hotplug slots directly underneath (ie,
+        * no p2p bridge inbetween), we call cleanup_bridge(). 
+        *
+        * The else clause cleans up root bridges that either had no
+        * hotplug slots at all, or had a p2p bridge underneath.
+        */
        bridge = acpiphp_handle_to_bridge(handle);
        if (bridge)
                cleanup_bridge(bridge);
        bridge = acpiphp_handle_to_bridge(handle);
        if (bridge)
                cleanup_bridge(bridge);
+       else
+               acpi_remove_notify_handler(handle, ACPI_SYSTEM_NOTIFY,
+                                          handle_hotplug_event_bridge);
 }
 
 static struct pci_dev * get_apic_pci_info(acpi_handle handle)
 }
 
 static struct pci_dev * get_apic_pci_info(acpi_handle handle)