diff --git a/mm/mempool.c b/mm/mempool.c
index 44f5fa9..0ef8cc8 100644
--- a/mm/mempool.c
+++ b/mm/mempool.c
@@ -213,6 +213,7 @@
 
 /**
  * mempool_init - initialize a memory pool
+ * @pool:      pointer to the memory pool that should be initialized
  * @min_nr:    the minimum number of elements guaranteed to be
  *             allocated for this pool.
  * @alloc_fn:  user-defined element-allocation function.