diff --git a/components/drivers/cputime/cputime.c b/components/drivers/cputime/cputime.c
index b39e789cd2a42287f2c7624da86f28812277cacf..97fbc328fe8671665f6bdb657e9fba6239069da1 100644
--- a/components/drivers/cputime/cputime.c
+++ b/components/drivers/cputime/cputime.c
@@ -52,7 +52,7 @@ uint64_t clock_cpu_gettime(void)
  * @param parameter the Parameters of timeout function
  *
  */
-void clock_cpu_settimeout(uint64_t tick, void (*timeout)(void *param), void *param)
+int clock_cpu_settimeout(uint64_t tick, void (*timeout)(void *param), void *param)
 {
     if (_cputime_ops)
         return _cputime_ops->cputime_settimeout(tick, timeout, param);
diff --git a/components/drivers/include/drivers/cputime.h b/components/drivers/include/drivers/cputime.h
index 2547ffa42ef1917da5577bb08e800a0b3bbf7bf8..665c89fb684f57630456d2eb5c0e7a35ba355fba 100644
--- a/components/drivers/include/drivers/cputime.h
+++ b/components/drivers/include/drivers/cputime.h
@@ -17,12 +17,12 @@ struct rt_clock_cputime_ops
 {
     double (*cputime_getres)(void);
     uint64_t (*cputime_gettime)(void);
-    void (*cputime_settimeout)(uint64_t tick, void (*timeout)(void *param), void *param);
+    int (*cputime_settimeout)(uint64_t tick, void (*timeout)(void *param), void *param);
 };
 
 double clock_cpu_getres(void);
 uint64_t clock_cpu_gettime(void);
-void clock_cpu_settimeout(uint64_t tick, void (*timeout)(void *param), void *param);
+int clock_cpu_settimeout(uint64_t tick, void (*timeout)(void *param), void *param);
 
 uint64_t clock_cpu_microsecond(uint64_t cpu_tick);
 uint64_t clock_cpu_millisecond(uint64_t cpu_tick);
diff --git a/components/libc/compilers/common/ctime.c b/components/libc/compilers/common/ctime.c
index 7806f91de3d22ee1b67c68a8b82e96772deb6b57..9147af3dfbf57f7536027f4e03767a3cbb759461 100644
--- a/components/libc/compilers/common/ctime.c
+++ b/components/libc/compilers/common/ctime.c
@@ -950,6 +950,16 @@ int timer_id_alloc(void)
     return -1;
 }
 
+void timer_id_lock()
+{
+    rt_hw_spin_lock(&_timer_id_lock);
+}
+
+void timer_id_unlock()
+{
+    rt_hw_spin_unlock(&_timer_id_lock);
+}
+
 struct timer_obj *timer_id_get(int timerid)
 {
     struct timer_obj *timer;
@@ -972,15 +982,6 @@ int timer_id_put(int id)
     _g_timerid[id] = NULL;
     return 0;
 }
-void timer_id_lock()
-{
-    rt_hw_spin_lock(&_timer_id_lock);
-}
-
-void timer_id_unlock()
-{
-    rt_hw_spin_unlock(&_timer_id_lock);
-}
 /**
  * @brief Create a per-process timer.
  *
@@ -1042,7 +1043,7 @@ int timer_create(clockid_t clockid, struct sigevent *evp, timer_t *timerid)
         return -1; /* todo:memory leak */
     }
     _g_timerid[_timerid] = timer;
-    *timerid = _timerid;
+    *timerid = (timer_t *)(rt_ubase_t)_timerid;
     timer_id_unlock();
 
     return 0;
@@ -1058,15 +1059,15 @@ int timer_delete(timer_t timerid)
 {
     struct timer_obj *timer;
     timer_id_lock();
-    if (_g_timerid[(int)timerid] == NULL)
+    if (_g_timerid[(rt_ubase_t)timerid] == NULL)
     {
         timer_id_unlock();
         rt_set_errno(EINVAL);
         LOG_E("can not find timer!");
         return -1;
     }
-    timer = _g_timerid[(int)timerid];
-    timer_id_put(timerid);
+    timer = _g_timerid[(rt_ubase_t)timerid];
+    timer_id_put((rt_ubase_t)timerid);
     timer_id_unlock();
 
     if (timer == RT_NULL || rt_object_get_type(&timer->timer.parent) != RT_Object_Class_Timer)
@@ -1105,7 +1106,7 @@ int timer_getoverrun(timer_t timerid)
  */
 int timer_gettime(timer_t timerid, struct itimerspec *its)
 {
-    struct timer_obj *timer = timer_id_get(timerid);
+    struct timer_obj *timer = timer_id_get((rt_ubase_t)timerid);
     rt_tick_t remaining;
     rt_uint32_t seconds, nanoseconds;
 
@@ -1172,7 +1173,7 @@ RTM_EXPORT(timer_gettime);
 int timer_settime(timer_t timerid, int flags, const struct itimerspec *value,
                   struct itimerspec *ovalue)
 {
-    struct timer_obj *timer = timer_id_get(timerid);
+    struct timer_obj *timer = timer_id_get((rt_ubase_t)timerid);
     if (timer == NULL ||
         rt_object_get_type(&timer->timer.parent) != RT_Object_Class_Timer ||
         value->it_interval.tv_nsec < 0 ||
diff --git a/components/lwp/lwp_syscall.c b/components/lwp/lwp_syscall.c
index 5a2d0d42637e6942ca67bf410e6c7d041e6bc8b2..37459366f51396c5de516c481fa79bda64d9e878 100644
--- a/components/lwp/lwp_syscall.c
+++ b/components/lwp/lwp_syscall.c
@@ -4338,7 +4338,7 @@ int sys_mq_unlink(const char *name)
 
     lwp_get_from_user(kname, (void *)name, len + 1);
     ret = mq_unlink(kname);
-    if (err < 0)
+    if (ret < 0)
     {
         ret = GET_ERRNO();
     }