diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index 9835a09..6b73244 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -4171,10 +4171,13 @@
  * cgroup_populate_dir - create subsys files in a cgroup directory
  * @cgrp: target cgroup
  * @subsys_mask: mask of the subsystem ids whose files should be added
+ *
+ * On failure, no file is added.
  */
 static int cgroup_populate_dir(struct cgroup *cgrp, unsigned long subsys_mask)
 {
 	struct cgroup_subsys *ss;
+	int ret = 0;
 
 	/* process cftsets of each subsystem */
 	for_each_root_subsys(cgrp->root, ss) {
@@ -4182,8 +4185,11 @@
 		if (!test_bit(ss->subsys_id, &subsys_mask))
 			continue;
 
-		list_for_each_entry(set, &ss->cftsets, node)
-			cgroup_addrm_files(cgrp, ss, set->cfts, true);
+		list_for_each_entry(set, &ss->cftsets, node) {
+			ret = cgroup_addrm_files(cgrp, ss, set->cfts, true);
+			if (ret < 0)
+				goto err;
+		}
 	}
 
 	/* This cgroup is ready now */
@@ -4201,6 +4207,9 @@
 	}
 
 	return 0;
+err:
+	cgroup_clear_dir(cgrp, subsys_mask);
+	return ret;
 }
 
 static void css_dput_fn(struct work_struct *work)