diff --git a/kernel/sched.c b/kernel/sched.c
index 2246591f3711..f4c413bdd38d 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -10001,11 +10001,10 @@ static void cpuacct_charge(struct task_struct *tsk, u64 cputime)
 	cpu = task_cpu(tsk);
 	ca = task_ca(tsk);
 
-	do {
+	for (; ca; ca = ca->parent) {
 		u64 *cpuusage = per_cpu_ptr(ca->cpuusage, cpu);
 		*cpuusage += cputime;
-		ca = ca->parent;
-	} while (ca);
+	}
 }
 
 struct cgroup_subsys cpuacct_subsys = {