diff --git a/drivers/power/pm_register.c b/drivers/power/pm_register.c
index 3c68f31b2f5..fa95b8efa34 100644
--- a/drivers/power/pm_register.c
+++ b/drivers/power/pm_register.c
@@ -62,19 +62,11 @@ int pm_register(FAR struct pm_callback_s *callbacks)
 
   /* Add the new entry to the end of the list of registered callbacks */
 
-  if (OSINIT_OS_READY())
-    {
-      ret = pm_lock();
-      if (ret == OK)
-        {
-          dq_addlast(&callbacks->entry, &g_pmglobals.registry);
-          pm_unlock();
-        }
-    }
-  else
+  ret = pm_lock();
+  if (ret == OK)
     {
       dq_addlast(&callbacks->entry, &g_pmglobals.registry);
-      ret = OK;
+      pm_unlock();
     }
 
   return ret;