Add device_release_driver() wrapper

Signed-off-by: Takashi Iwai <[email protected]>
tiwai · Jan 1, 2021 · 23b0dfd · 23b0dfd
1 parent aadee28
commit 23b0dfd
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diff --git 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
@@ -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)