plugins types UPDATE zero out params
diff --git a/src/plugins_types.c b/src/plugins_types.c
index de7273d..4fe5d8b 100644
--- a/src/plugins_types.c
+++ b/src/plugins_types.c
@@ -1006,6 +1006,7 @@
     if (target) {
         *target = NULL;
     }
+    *errmsg = NULL;
 
     /* get the canonical value */
     val_str = lyd_value_get_canonical(LYD_CTX(node), value);