diff --git a/[refs] b/[refs]
index 24e5b15f6815..59e831727293 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 9e584a4fe58881e2dc8f09bdf8444b199ab5ecaf
+refs/heads/master: f8916c11a4dc4cb2367e9bee1788f4e0f1b4eabc
diff --git a/trunk/drivers/base/attribute_container.c b/trunk/drivers/base/attribute_container.c
index 1ec0654665cf..7370d7cf5988 100644
--- a/trunk/drivers/base/attribute_container.c
+++ b/trunk/drivers/base/attribute_container.c
@@ -18,6 +18,7 @@
 #include <linux/slab.h>
 #include <linux/list.h>
 #include <linux/module.h>
+#include <linux/mutex.h>
 
 #include "base.h"