--- zzzz-none-000/linux-4.4.60/block/blk-cgroup.c	2017-04-08 07:53:53.000000000 +0000
+++ scorpion-7490-727/linux-4.4.60/block/blk-cgroup.c	2021-02-04 17:41:59.000000000 +0000
@@ -1069,10 +1069,8 @@
 	if (preloaded)
 		radix_tree_preload_end();
 
-	if (IS_ERR(blkg)) {
-		blkg_free(new_blkg);
+	if (IS_ERR(blkg))
 		return PTR_ERR(blkg);
-	}
 
 	q->root_blkg = blkg;
 	q->root_rl.blkg = blkg;