diff --git a/include/linux/device.h b/include/linux/device.h
index 37e2210..386b792 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -78,6 +78,7 @@ struct device_driver {
 int driver_register(struct device_driver *drv);
 void driver_unregister(struct device_driver *drv);
 int device_attach(struct device *dev);
+int device_release_driver(struct device *dev);
 
 struct bus_type {
 	const char		*name;
diff --git a/snd-wrapper.c b/snd-wrapper.c
index a93ede2..9f78af6 100644
--- a/snd-wrapper.c
+++ b/snd-wrapper.c
@@ -838,6 +838,15 @@ int device_attach(struct device *dev)
 	return 0;
 }
 
+int device_release_driver(struct device *dev)
+{
+	if (dev->driver) {
+		dev->driver->remove(dev);
+		dev->driver = NULL;
+	}
+	return 0;
+}
+
 /*
  */
 static void check_resume(struct device *dev)