switch_core_session_execute_exten: fix missing UNPROTECT_INTERFACE

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@14398 d0543943-73ff-0310-b7d9-9358b9ac24b2

src/switch_core_session.c

@@ -1545,7 +1545,10 @@ SWITCH_DECLARE(switch_status_t) switch_core_session_execute_exten(switch_core_se
 
 		count++;
 
-		if ((extension = dialplan_interface->hunt_function(session, dparg, new_profile)) != 0) {
+		extension = dialplan_interface->hunt_function(session, dparg, new_profile);
+		UNPROTECT_INTERFACE(dialplan_interface);	
+
+		if (extension) {
 			break;
 		}
 	}