diff --git a/net/ethtool/mm.c b/net/ethtool/mm.c
index 7e51f7633001a9a74787c7e0ff92900c4b5e318c..e612856eed8ceebadad9ed9164bad9a8fc4665d2 100644
--- a/net/ethtool/mm.c
+++ b/net/ethtool/mm.c
@@ -56,7 +56,7 @@ static int mm_prepare_data(const struct ethnl_req_info *req_base,
 out_complete:
 	ethnl_ops_complete(dev);
 
-	return 0;
+	return ret;
 }
 
 static int mm_reply_size(const struct ethnl_req_info *req_base,