--- a/master/sdo_request.c	Tue Dec 14 21:58:53 2010 +0100
+++ b/master/sdo_request.c	Mon Dec 20 17:52:37 2010 +0100
@@ -35,6 +35,7 @@
 
 #include <linux/module.h>
 #include <linux/jiffies.h>
+#include <linux/slab.h>
 
 #include "sdo_request.h"