fixup: error

Author: polarvid

components/drivers/ipc/completion_up.c

@@ -77,8 +77,6 @@ rt_err_t rt_completion_wait_flags(struct rt_completion *completion,
     thread = rt_thread_self();
 
     level = rt_spin_lock_irqsave(&_completion_lock);
-
-__try_again:
     if (RT_COMPLETION_FLAG(completion) != RT_COMPLETED)
     {
         /* only one thread can suspend on complete */
@@ -120,18 +118,15 @@ rt_err_t rt_completion_wait_flags(struct rt_completion *completion,
                 /* do schedule */
                 rt_schedule();
 
+                result = thread->error;
+                result = result > 0 ? -result : result;
+
                 level = rt_spin_lock_irqsave(&_completion_lock);
 
                 if (completion->susp_thread_n_flag != waiting_stat)
                 {
-                    /*  */
-                    timeout = 0;
-                    goto __try_again;
-                }
-                else
-                {
-                    result = thread->error;
-                    result = result > 0 ? -result : result;
+                    /* status had been modified after we suspend */
+                    goto __exit;
                 }
             }
         }