Javadoc warning fixes

Change-Id: I30b3398b849da5d528f2bce58004d190ca17ad50
diff --git a/providers/netconf/device/src/main/java/org/onosproject/provider/netconf/device/impl/NetconfDeviceProvider.java b/providers/netconf/device/src/main/java/org/onosproject/provider/netconf/device/impl/NetconfDeviceProvider.java
index 1ad4025..a45e36b 100644
--- a/providers/netconf/device/src/main/java/org/onosproject/provider/netconf/device/impl/NetconfDeviceProvider.java
+++ b/providers/netconf/device/src/main/java/org/onosproject/provider/netconf/device/impl/NetconfDeviceProvider.java
@@ -343,6 +343,8 @@
     /**
      * Return the DeviceId about the device containing the URI.
      *
+     * @param ip IP address
+     * @param port port number
      * @return DeviceId
      */
     public DeviceId getDeviceId(String ip, int port) {