diff --git a/kernel/include/ksched.h b/kernel/include/ksched.h
index 4cc17d5e92ecd5..fe093d1c1b11ff 100644
--- a/kernel/include/ksched.h
+++ b/kernel/include/ksched.h
@@ -180,7 +180,7 @@ static ALWAYS_INLINE struct k_thread *z_unpend_first_thread(_wait_q_t *wait_q)
 		thread = _priq_wait_best(&wait_q->waitq);
 		if (unlikely(thread != NULL)) {
 			unpend_thread_no_timeout(thread);
-			(void)z_abort_thread_timeout(thread);
+			z_abort_thread_timeout(thread);
 		}
 	}
 
diff --git a/kernel/include/timeout_q.h b/kernel/include/timeout_q.h
index a62242a9f3cfb7..b3c3e61cd9fc89 100644
--- a/kernel/include/timeout_q.h
+++ b/kernel/include/timeout_q.h
@@ -49,9 +49,9 @@ static inline void z_add_thread_timeout(struct k_thread *thread, k_timeout_t tic
 	z_add_timeout(&thread->base.timeout, z_thread_timeout, ticks);
 }
 
-static inline int z_abort_thread_timeout(struct k_thread *thread)
+static inline void z_abort_thread_timeout(struct k_thread *thread)
 {
-	return z_abort_timeout(&thread->base.timeout);
+	z_abort_timeout(&thread->base.timeout);
 }
 
 int32_t z_get_next_timeout_expiry(void);
@@ -62,7 +62,7 @@ k_ticks_t z_timeout_remaining(const struct _timeout *timeout);
 
 /* Stubs when !CONFIG_SYS_CLOCK_EXISTS */
 #define z_init_thread_timeout(thread_base) do {} while (false)
-#define z_abort_thread_timeout(to) (0)
+#define z_abort_thread_timeout(to) do {} while (false)
 #define z_is_inactive_timeout(to) 1
 #define z_get_next_timeout_expiry() ((int32_t) K_TICKS_FOREVER)
 #define z_set_timeout_expiry(ticks, is_idle) do {} while (false)
diff --git a/kernel/sched.c b/kernel/sched.c
index 41cdafa5d7eb57..0c2be8ab74b870 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -652,7 +652,7 @@ struct k_thread *z_unpend1_no_timeout(_wait_q_t *wait_q)
 void z_unpend_thread(struct k_thread *thread)
 {
 	z_unpend_thread_no_timeout(thread);
-	(void)z_abort_thread_timeout(thread);
+	z_abort_thread_timeout(thread);
 }
 
 /* Priority set utility that does no rescheduling, it just changes the
@@ -1164,7 +1164,7 @@ void z_impl_k_wakeup(k_tid_t thread)
 {
 	SYS_PORT_TRACING_OBJ_FUNC(k_thread, wakeup, thread);
 
-	(void)z_abort_thread_timeout(thread);
+	z_abort_thread_timeout(thread);
 
 	k_spinlock_key_t  key = k_spin_lock(&_sched_spinlock);
 
@@ -1212,7 +1212,7 @@ static inline void unpend_all(_wait_q_t *wait_q)
 
 	for (thread = z_waitq_head(wait_q); thread != NULL; thread = z_waitq_head(wait_q)) {
 		unpend_thread_no_timeout(thread);
-		(void)z_abort_thread_timeout(thread);
+		z_abort_thread_timeout(thread);
 		arch_thread_return_value_set(thread, 0);
 		ready_thread(thread);
 	}
@@ -1247,7 +1247,7 @@ static ALWAYS_INLINE void halt_thread(struct k_thread *thread, uint8_t new_state
 			if (thread->base.pended_on != NULL) {
 				unpend_thread_no_timeout(thread);
 			}
-			(void)z_abort_thread_timeout(thread);
+			z_abort_thread_timeout(thread);
 			unpend_all(&thread->join_queue);
 
 			/* Edge case: aborting arch_current_thread() from within an
@@ -1458,7 +1458,7 @@ bool z_sched_wake(_wait_q_t *wait_q, int swap_retval, void *swap_data)
 							    swap_retval,
 							    swap_data);
 			unpend_thread_no_timeout(thread);
-			(void)z_abort_thread_timeout(thread);
+			z_abort_thread_timeout(thread);
 			ready_thread(thread);
 			ret = true;
 		}