domain-control: don't fail decoding a fully empty set message.

diff --git a/src/plugins/domain-control/message.c b/src/plugins/domain-control/message.c
index 5c071a9..48e93b1 100644 (file)
--- a/src/plugins/domain-control/message.c
+++ b/src/plugins/domain-control/message.c
@@ -450,7 +450,7 @@ msg_t *msg_decode_set(mrp_msg_t *msg)
 
     values = mrp_allocz(sizeof(*values) * ntotal);
 
-    if (values == NULL)
+    if (values == NULL && ntotal > 0)
         goto fail;
 
     d = set->tables;