onos-6288: releasing wrong tunnelId object fix

Change-Id: I33bf8cebd5f3348fe414cadb1a318fdf0295dda3
diff --git a/apps/pce/app/src/main/java/org/onosproject/pce/pceservice/PceManager.java b/apps/pce/app/src/main/java/org/onosproject/pce/pceservice/PceManager.java
index 658dcbb..1273bf9 100644
--- a/apps/pce/app/src/main/java/org/onosproject/pce/pceservice/PceManager.java
+++ b/apps/pce/app/src/main/java/org/onosproject/pce/pceservice/PceManager.java
@@ -690,7 +690,7 @@
         TunnelId tunnelId2 = tunnelService.setupTunnel(appId, src, tunnelBackup, path.backup());
         if (tunnelId2 == null) {
             //Release 1st tunnel
-            releasePath(tunnelId2);
+            releasePath(tunnelId1);
 
             pceStore.addFailedPathInfo(new PcePathInfo(src, dst, tunnelName, constraints, lspType, null, true));
 
@@ -1315,4 +1315,4 @@
             callForOptimization();
         }
     }
-}
\ No newline at end of file
+}