[patch 14/28] um: Remove BKL from random

[Thomas Gleixner]

cycle_kernel_lock() was added during the big BKL pushdown. It should
ensure the serializiation against driver init code. In this case there
is nothing to serialize. Remove it.

Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Jeff Dike <jdike@xxxxxxxxxxx>
---
 arch/um/drivers/random.c |    3 ---
 1 file changed, 3 deletions(-)

Index: linux-2.6-tip/arch/um/drivers/random.c
===================================================================
--- linux-2.6-tip.orig/arch/um/drivers/random.c
+++ linux-2.6-tip/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
 
 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;


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