diff --git a/[refs] b/[refs]
index 2e2be18c70be..c0f4676ed489 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: ca1b82ba0888e742a7efdb89ed8e2aab453e091f
+refs/heads/master: df502e389383b219e44819fe757614450d95f297
diff --git a/trunk/arch/um/drivers/random.c b/trunk/arch/um/drivers/random.c
index 6eabb7022a2d..4949044773ba 100644
--- a/trunk/arch/um/drivers/random.c
+++ b/trunk/arch/um/drivers/random.c
@@ -7,7 +7,6 @@
  * of the GNU General Public License, incorporated herein by reference.
  */
 #include <linux/sched.h>
-#include <linux/smp_lock.h>
 #include <linux/module.h>
 #include <linux/fs.h>
 #include <linux/interrupt.h>
@@ -34,8 +33,6 @@ static DECLARE_WAIT_QUEUE_HEAD(host_read_wait);
 
 static int rng_dev_open (struct inode *inode, struct file *filp)
 {
-	cycle_kernel_lock();
-
 	/* enforce read-only access to this chrdev */
 	if ((filp->f_mode & FMODE_READ) == 0)
 		return -EINVAL;