diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index 59aa339a245c..469dd547770c 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -4196,7 +4196,9 @@ static void *cgroup_pidlist_next(struct seq_file *s, void *v, loff_t *pos)
 
 static int cgroup_pidlist_show(struct seq_file *s, void *v)
 {
-	return seq_printf(s, "%d\n", *(int *)v);
+	seq_printf(s, "%d\n", *(int *)v);
+
+	return 0;
 }
 
 static u64 cgroup_read_notify_on_release(struct cgroup_subsys_state *css,