link discovery clean up
diff --git a/providers/of/link/src/main/java/org/onlab/onos/provider/of/link/impl/LinkDiscovery.java b/providers/of/link/src/main/java/org/onlab/onos/provider/of/link/impl/LinkDiscovery.java
index ecb4765..dfff4d5 100644
--- a/providers/of/link/src/main/java/org/onlab/onos/provider/of/link/impl/LinkDiscovery.java
+++ b/providers/of/link/src/main/java/org/onlab/onos/provider/of/link/impl/LinkDiscovery.java
@@ -228,6 +228,9 @@
* @return Packet_out message with LLDP data
*/
private OFPacketOut createLLDPPacketOut(final OFPortDesc port) {
+ if (port == null) {
+ return null;
+ }
OFPacketOut.Builder packetOut = this.ofFactory.buildPacketOut();
packetOut.setBufferId(OFBufferId.NO_BUFFER);
OFAction act = this.ofFactory.actions().buildOutput()
@@ -248,6 +251,9 @@
* @return Packet_out message with LLDP data
*/
private OFPacketOut createBDDPPacketOut(final OFPortDesc port) {
+ if (port == null) {
+ return null;
+ }
OFPacketOut.Builder packetOut = sw.factory().buildPacketOut();
packetOut.setBufferId(OFBufferId.NO_BUFFER);
@@ -267,6 +273,9 @@
private void sendMsg(final OFMessage msg) {
+ if (msg == null) {
+ return;
+ }
this.sw.sendMsg(msg);
}
@@ -389,8 +398,8 @@
}
public void stop() {
- removeAllPorts();
timeout.cancel();
+ removeAllPorts();
}
}