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-rw-r--r--include/rtdef.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/rtdef.h b/include/rtdef.h
index 57401115d9..a6af3dd2c3 100644
--- a/include/rtdef.h
+++ b/include/rtdef.h
@@ -774,7 +774,7 @@ struct rt_mutex
rt_uint8_t ceiling_priority; /**< the priority ceiling of mutexe */
rt_uint8_t priority; /**< the maximal priority for pending thread */
rt_uint8_t hold; /**< numbers of thread hold the mutex */
- rt_uint8_t reserv;
+ rt_uint8_t reserved; /**< reserved field */
struct rt_thread *owner; /**< current owner of mutex */
rt_list_t taken_list; /**< the object list taken by thread */