ACPI: dock: Remove redundant ACPI NS walk

Combined two ACPI namespace walks, which look for dock stations
and then bays separately, into a single walk.

Signed-off-by: Toshi Kani <toshi.kani@hp.com>
Reviewed-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

1 files changed, 7 insertions, 19 deletions

diff --git a/drivers/acpi/dock.c b/drivers/acpi/dock.c
index 88eb14304667..ae4ebf2d4cd2 100644
--- a/drivers/acpi/dock.c
+++ b/drivers/acpi/dock.c
@@ -1016,44 +1016,32 @@ static int dock_remove(struct dock_station *ds)
 }
 
 /**
- * find_dock - look for a dock station
+ * find_dock_and_bay - look for dock stations and bays
  * @handle: acpi handle of a device
  * @lvl: unused
- * @context: counter of dock stations found
+ * @context: unused
  * @rv: unused
  *
- * This is called by acpi_walk_namespace to look for dock stations.
+ * This is called by acpi_walk_namespace to look for dock stations and bays.
  */
 static __init acpi_status
-find_dock(acpi_handle handle, u32 lvl, void *context, void **rv)
+find_dock_and_bay(acpi_handle handle, u32 lvl, void *context, void **rv)
 {
-        if (is_dock(handle))
+        if (is_dock(handle) || is_ejectable_bay(handle))
                 dock_add(handle);
 
         return AE_OK;
 }
 
-static __init acpi_status
-find_bay(acpi_handle handle, u32 lvl, void *context, void **rv)
-{
-        /* If bay is a dock, it's already handled */
-        if (is_ejectable_bay(handle) && !is_dock(handle))
-                dock_add(handle);
-        return AE_OK;
-}
-
 static int __init dock_init(void)
 {
         if (acpi_disabled)
                 return 0;
 
-        /* look for a dock station */
+        /* look for dock stations and bays */
         acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT,
-                            ACPI_UINT32_MAX, find_dock, NULL, NULL, NULL);
+                ACPI_UINT32_MAX, find_dock_and_bay, NULL, NULL, NULL);
 
-        /* look for bay */
-        acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT,
-                        ACPI_UINT32_MAX, find_bay, NULL, NULL, NULL);
         if (!dock_station_count) {
                 printk(KERN_INFO PREFIX "No dock devices found.\n");
                 return 0;