block/parallels: Simplify parallels_open() after previous commit

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20200707160613.848843-39-armbru@redhat.com>
diff --git a/block/parallels.c b/block/parallels.c
index 180dd41..cb5259a 100644
--- a/block/parallels.c
+++ b/block/parallels.c
@@ -842,6 +842,7 @@
                                        &local_err);
     g_free(buf);
     if (local_err != NULL) {
+        error_propagate(errp, local_err);
         goto fail_options;
     }
 
@@ -872,15 +873,11 @@
 
 fail_format:
     error_setg(errp, "Image not in Parallels format");
+fail_options:
     ret = -EINVAL;
 fail:
     qemu_vfree(s->header);
     return ret;
-
-fail_options:
-    error_propagate(errp, local_err);
-    ret = -EINVAL;
-    goto fail;
 }