diff --git a/kernel/posix-cpu-timers.c b/kernel/posix-cpu-timers.c
index 4ebd8ad07c66..c7f31aa272f7 100644
--- a/kernel/posix-cpu-timers.c
+++ b/kernel/posix-cpu-timers.c
@@ -404,14 +404,8 @@ static void cleanup_timers_list(struct list_head *head,
 {
 	struct cpu_timer_list *timer, *next;
 
-	list_for_each_entry_safe(timer, next, head, entry) {
+	list_for_each_entry_safe(timer, next, head, entry)
 		list_del_init(&timer->entry);
-		if (timer->expires < curr) {
-			timer->expires = 0;
-		} else {
-			timer->expires -= curr;
-		}
-	}
 }
 
 /*
@@ -459,15 +453,21 @@ void posix_cpu_timers_exit_group(struct task_struct *tsk)
 		       tsk->se.sum_exec_runtime + sig->sum_sched_runtime);
 }
 
-static void clear_dead_task(struct k_itimer *timer, unsigned long long now)
+static void clear_dead_task(struct k_itimer *itimer, unsigned long long now)
 {
+	struct cpu_timer_list *timer = &itimer->it.cpu;
+
 	/*
 	 * That's all for this thread or process.
 	 * We leave our residual in expires to be reported.
 	 */
-	put_task_struct(timer->it.cpu.task);
-	timer->it.cpu.task = NULL;
-	timer->it.cpu.expires -= now;
+	put_task_struct(timer->task);
+	timer->task = NULL;
+	if (timer->expires < now) {
+		timer->expires = 0;
+	} else {
+		timer->expires -= now;
+	}
 }
 
 static inline int expires_gt(cputime_t expires, cputime_t new_exp)