更新 rt_tick_get_delta

Author: htl5241

src/clock.c

@@ -82,13 +82,11 @@ RTM_EXPORT(rt_tick_get);
  */
 rt_tick_t rt_tick_get_delta(rt_tick_t base)
 {
-    rt_tick_t delta;
     rt_tick_t tnow = rt_tick_get();
     if (tnow >= base)
-        delta = tnow - base;
-    else
-        delta = RT_TICK_MAX - base + tnow + 1;
-    return delta;
+        return tnow - base;
+    
+    return RT_TICK_MAX - base + tnow + 1;
 }
 RTM_EXPORT(rt_tick_get_delta);