Add return value to get_controller
diff --git a/TestON/drivers/common/cli/emulator/mininetclidriver.py b/TestON/drivers/common/cli/emulator/mininetclidriver.py
index ebc86b0..d2e5a81 100644
--- a/TestON/drivers/common/cli/emulator/mininetclidriver.py
+++ b/TestON/drivers/common/cli/emulator/mininetclidriver.py
@@ -515,6 +515,7 @@
         command = "sh ovs-vsctl get-controller "+str(sw)
         try:
             response = self.execute(cmd=command,prompt="mininet>",timeout=10)
+            return response
         except pexpect.EOF:  
             main.log.error(self.name + ": EOF exception found")
             main.log.error(self.name + ":     " + self.handle.before)