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-rw-r--r--cpukit/score/include/rtems/score/freechain.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/cpukit/score/include/rtems/score/freechain.h b/cpukit/score/include/rtems/score/freechain.h
index 7fa580a4e1..1540c0e2a1 100644
--- a/cpukit/score/include/rtems/score/freechain.h
+++ b/cpukit/score/include/rtems/score/freechain.h
@@ -93,7 +93,8 @@ void *_Freechain_Get(
* @brief Puts a node back onto the freechain.
*
* @param[in] freechain The freechain control.
- * @param[in] node The node to put back.
+ * @param[in] node The node to put back. The node may be @c NULL, in this case
+ * the function does nothing.
*/
void _Freechain_Put(
Freechain_Control *freechain,