fix typo

[fw/altos] / src / ao_task.c

diff --git a/src/ao_task.c b/src/ao_task.c
index 14aa84c841d698d3a285de7370c80de369c7b56f..4a78766e2828664b1687b09f0ea28a02ac987066 100644 (file)
--- a/src/ao_task.c
+++ b/src/ao_task.c
@@ -217,7 +217,10 @@ ao_wakeup(__xdata void *wchan)
 void
 ao_alarm(uint16_t delay)
 {
-       if (!(ao_cur_task->alarm = ao_time() + delay))
+       /* Make sure we sleep *at least* delay ticks, which means adding
+        * one to account for the fact that we may be close to the next tick
+        */
+       if (!(ao_cur_task->alarm = ao_time() + delay + 1))
                ao_cur_task->alarm = 1;
 }
 
@@ -228,7 +231,7 @@ ao_wake_task(__xdata struct ao_task *task)
 }
 
 void
-ao_exit(void)
+ao_exit(void) __critical
 {
        uint8_t i;
        ao_num_tasks--;