diff --git a/[refs] b/[refs]
index 15109111c3ee..b307b35a3121 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 7644bdac7f4d3e5910f4d3f86f1f2b098d1212ca
+refs/heads/master: 609b0b8c4608d59be261dde748f1ff1eccd748ba
diff --git a/trunk/drivers/xen/sys-hypervisor.c b/trunk/drivers/xen/sys-hypervisor.c
index 5e5ad7e28858..66a0a1475acf 100644
--- a/trunk/drivers/xen/sys-hypervisor.c
+++ b/trunk/drivers/xen/sys-hypervisor.c
@@ -11,6 +11,7 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/kobject.h>
+#include <linux/err.h>
 
 #include <asm/xen/hypervisor.h>
 #include <asm/xen/hypercall.h>