diff --git a/arch/xtensa/src/esp32s2/esp32s2_rtc.c b/arch/xtensa/src/esp32s2/esp32s2_rtc.c
index 5cef4398e94..0778310fb60 100644
--- a/arch/xtensa/src/esp32s2/esp32s2_rtc.c
+++ b/arch/xtensa/src/esp32s2/esp32s2_rtc.c
@@ -2688,8 +2688,7 @@ int up_rtc_cancelalarm(enum alm_id_e alarmid)
 
   if (cbinfo->ac_cb != NULL)
     {
-      sched_lock();
-      flags = spin_lock_irqsave(&g_rtc_lock);
+      flags = spin_lock_irqsave_nopreempt(&g_rtc_lock);
 
       /* Stop and delete the alarm */
 
@@ -2700,8 +2699,7 @@ int up_rtc_cancelalarm(enum alm_id_e alarmid)
       cbinfo->deadline_us = 0;
       cbinfo->alarm_hdl = NULL;
 
-      spin_unlock_irqrestore(&g_rtc_lock, flags);
-      sched_unlock();
+      spin_unlock_irqrestore_nopreempt(&g_rtc_lock, flags);
 
       ret = OK;
     }