1 files changed, 5 insertions, 26 deletions

diff --git a/drivers/acpi/dock.c b/drivers/acpi/dock.c
index 05ea4be01a83..dcd73ccb514c 100644
--- a/drivers/acpi/dock.c
+++ b/drivers/acpi/dock.c
@@ -441,7 +441,7 @@ static void handle_dock(struct dock_station *ds, int dock)
         acpi_status status;
         struct acpi_object_list arg_list;
         union acpi_object arg;
-        struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
+        unsigned long long value;
 
         acpi_handle_info(ds->handle, "%s\n", dock ? "docking" : "undocking");
 
@@ -450,12 +450,10 @@ static void handle_dock(struct dock_station *ds, int dock)
         arg_list.pointer = &arg;
         arg.type = ACPI_TYPE_INTEGER;
         arg.integer.value = dock;
-        status = acpi_evaluate_object(ds->handle, "_DCK", &arg_list, &buffer);
+        status = acpi_evaluate_integer(ds->handle, "_DCK", &arg_list, &value);
         if (ACPI_FAILURE(status) && status != AE_NOT_FOUND)
                 acpi_handle_err(ds->handle, "Failed to execute _DCK (0x%x)\n",
                                 status);
-
-        kfree(buffer.pointer);
 }
 
 static inline void dock(struct dock_station *ds)
@@ -671,39 +669,20 @@ static void dock_notify(struct dock_station *ds, u32 event)
         }
 }
 
-struct dock_data {
-        struct dock_station *ds;
-        u32 event;
-};
-
-static void acpi_dock_deferred_cb(void *context)
+static void acpi_dock_deferred_cb(void *data, u32 event)
 {
-        struct dock_data *data = context;
-
         acpi_scan_lock_acquire();
-        dock_notify(data->ds, data->event);
+        dock_notify(data, event);
         acpi_scan_lock_release();
-        kfree(data);
 }
 
 static void dock_notify_handler(acpi_handle handle, u32 event, void *data)
 {
-        struct dock_data *dd;
-
         if (event != ACPI_NOTIFY_BUS_CHECK && event != ACPI_NOTIFY_DEVICE_CHECK
            && event != ACPI_NOTIFY_EJECT_REQUEST)
                 return;
 
-        dd = kmalloc(sizeof(*dd), GFP_KERNEL);
-        if (dd) {
-                acpi_status status;
-
-                dd->ds = data;
-                dd->event = event;
-                status = acpi_os_hotplug_execute(acpi_dock_deferred_cb, dd);
-                if (ACPI_FAILURE(status))
-                        kfree(dd);
-        }
+        acpi_hotplug_execute(acpi_dock_deferred_cb, data, event);
 }
 
 /**