diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index f8517cd..f72b5e5 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -1234,7 +1234,7 @@
 
 /**
  * mem_cgroup_margin - calculate chargeable space of a memory cgroup
- * @mem: the memory cgroup
+ * @memcg: the memory cgroup
  *
  * Returns the maximum amount of memory @mem can be charged with, in
  * pages.
@@ -1508,7 +1508,7 @@
 
 /**
  * test_mem_cgroup_node_reclaimable
- * @mem: the target memcg
+ * @memcg: the target memcg
  * @nid: the node ID to be checked.
  * @noswap : specify true here if the user wants flle only information.
  *