--- build_mod/kcl_wait.c.orig	2010-04-13 20:02:46.494496561 +0200
+++ build_mod/kcl_wait.c	2010-04-13 19:52:00.054563389 +0200
@@ -39,6 +39,7 @@
 #include <linux/wait.h>
 #include <linux/highmem.h>
 #include <linux/sched.h>
+#include <linux/slab.h>

 #include "kcl_config.h"
 #include "kcl_wait.h"