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Commit df502e38 authored by Thomas Gleixner's avatar Thomas Gleixner
Browse files

um: Remove BKL from random 



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: default avatarThomas Gleixner <tglx@linutronix.de>
LKML-Reference: <20091010153349.641118498@linutronix.de>
Cc: Jeff Dike <jdike@addtoit.com>
parent ca1b82ba

arch/um/drivers/random.c

+0 −3
Original line number Diff line number Diff line
@@ -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;