diff --git a/source/os/src/osThread.c b/source/os/src/osThread.c
index 7edddee310..0dd5374cf0 100644
--- a/source/os/src/osThread.c
+++ b/source/os/src/osThread.c
@@ -235,9 +235,7 @@ int32_t taosThreadMutexLock(TdThreadMutex *mutex) {
   return 0;
 #else
   THREAD_PTR_CHECK(mutex)
-  int result = pthread_mutex_lock(mutex);
-  assert(result == 0);
-  return result;
+  return pthread_mutex_lock(mutex);
 #endif
 }
 
@@ -261,9 +259,7 @@ int32_t taosThreadMutexUnlock(TdThreadMutex *mutex) {
   return 0;
 #else
   THREAD_PTR_CHECK(mutex)
-  int result = pthread_mutex_unlock(mutex);
-  assert(result == 0);
-  return result;
+  return pthread_mutex_unlock(mutex);
 #endif
 }