Coverity CWE 476: NULL Pointer Dereference

Added fixes for NULL Pointer Dereference Coverity Issue

Change-Id: I2c68ff720f563631fba3ea8586e325a163d752c6
Signed-off-by: elumalai <deepika.e@tataelxsi.co.in>
diff --git a/NG-RO/osm_ng_ro/ro_main.py b/NG-RO/osm_ng_ro/ro_main.py
index f67d1cb..c0e47ae 100644
--- a/NG-RO/osm_ng_ro/ro_main.py
+++ b/NG-RO/osm_ng_ro/ro_main.py
@@ -687,7 +687,7 @@
         **kwargs,
     ):
         token_info = None
-        outdata = None
+        outdata = {}
         _format = None
         method = "DONE"
         rollback = []