libcamera: device_enumerator: Remove unnecessary rvalue references

There are std::unique_ptr rvalue reference arguments. They are
intended to pass the ownership to the functions. In the case,
it is right to let the argument be std::unique_ptr value and
pass by std::move().

Signed-off-by: Hirokazu Honda <hiroh@chromium.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

include/libcamera/internal/device_enumerator.h

@@ -49,7 +49,7 @@ public:
 
 protected:
 	std::unique_ptr<MediaDevice> createDevice(const std::string &deviceNode);
-	void addDevice(std::unique_ptr<MediaDevice> &&media);
+	void addDevice(std::unique_ptr<MediaDevice> media);
 	void removeDevice(const std::string &deviceNode);
 
 private:

include/libcamera/internal/device_enumerator_udev.h

@@ -39,8 +39,8 @@ private:
 	using DependencyMap = std::map<dev_t, std::list<MediaEntity *>>;
 
 	struct MediaDeviceDeps {
-		MediaDeviceDeps(std::unique_ptr<MediaDevice> &&media,
-				DependencyMap &&deps)
+		MediaDeviceDeps(std::unique_ptr<MediaDevice> media,
+				DependencyMap deps)
 			: media_(std::move(media)), deps_(std::move(deps))
 		{
 		}

src/libcamera/device_enumerator.cpp

@@ -246,7 +246,7 @@ std::unique_ptr<MediaDevice> DeviceEnumerator::createDevice(const std::string &d
  * This method shall be called after all members of the entities of the
  * media graph have been confirmed to be initialized.
  */
-void DeviceEnumerator::addDevice(std::unique_ptr<MediaDevice> &&media)
+void DeviceEnumerator::addDevice(std::unique_ptr<MediaDevice> media)
 {
 	LOG(DeviceEnumerator, Debug)
 		<< "Added device " << media->deviceNode() << ": " << media->driver();