diff --git a/block/rbd.c b/block/rbd.c
index ca8e5bbace9f06249f5a6476acf76d374645aad2..b199450f9fc9244ac82278bcdf696c510ef3364f 100644
--- a/block/rbd.c
+++ b/block/rbd.c
@@ -655,12 +655,34 @@ failed_opts:
     return r;
 }
 
+static int qemu_rbd_convert_options(QDict *options, BlockdevOptionsRbd **opts,
+                                    Error **errp)
+{
+    Visitor *v;
+    Error *local_err = NULL;
+
+    /* Convert the remaining options into a QAPI object */
+    v = qobject_input_visitor_new_flat_confused(options, errp);
+    if (!v) {
+        return -EINVAL;
+    }
+
+    visit_type_BlockdevOptionsRbd(v, NULL, opts, &local_err);
+    visit_free(v);
+
+    if (local_err) {
+        error_propagate(errp, local_err);
+        return -EINVAL;
+    }
+
+    return 0;
+}
+
 static int qemu_rbd_open(BlockDriverState *bs, QDict *options, int flags,
                          Error **errp)
 {
     BDRVRBDState *s = bs->opaque;
     BlockdevOptionsRbd *opts = NULL;
-    Visitor *v;
     const QDictEntry *e;
     Error *local_err = NULL;
     char *keypairs, *secretid;
@@ -676,19 +698,9 @@ static int qemu_rbd_open(BlockDriverState *bs, QDict *options, int flags,
         qdict_del(options, "password-secret");
     }
 
-    /* Convert the remaining options into a QAPI object */
-    v = qobject_input_visitor_new_flat_confused(options, errp);
-    if (!v) {
-        r = -EINVAL;
-        goto out;
-    }
-
-    visit_type_BlockdevOptionsRbd(v, NULL, &opts, &local_err);
-    visit_free(v);
-
+    r = qemu_rbd_convert_options(options, &opts, &local_err);
     if (local_err) {
         error_propagate(errp, local_err);
-        r = -EINVAL;
         goto out;
     }