diff --git a/[refs] b/[refs]
index f4f5823a2173..13d848c29bda 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 080c2226474fa3060fadce9a2341004f477aadb3
+refs/heads/master: 89c7de08c5fc059c4f6231571416d9bc0bbc91d4
diff --git a/trunk/drivers/char/efirtc.c b/trunk/drivers/char/efirtc.c
index 49233f589874..d57ca3e4e534 100644
--- a/trunk/drivers/char/efirtc.c
+++ b/trunk/drivers/char/efirtc.c
@@ -28,6 +28,7 @@
  */
 
 
+#include <linux/smp_lock.h>
 #include <linux/types.h>
 #include <linux/errno.h>
 #include <linux/miscdevice.h>
@@ -272,6 +273,7 @@ efi_rtc_open(struct inode *inode, struct file *file)
 	 * We do accept multiple open files at the same time as we
 	 * synchronize on the per call operation.
 	 */
+	cycle_kernel_lock();
 	return 0;
 }