lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

um: Remove BKL from random

Browse Source 
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@linutronix.de>
LKML-Reference: <20091010153349.641118498@linutronix.de>
Cc: Jeff Dike <jdike@addtoit.com>
This commit is contained in:
Thomas Gleixner
2009-10-10 15:36:30 +00:00
parent ca1b82ba08
commit df502e3893
1 changed files with 0 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
arch/um/drivers/random.c
View File

@@ -7,7 +7,6 @@
* of the GNU General Public License, incorporated herein by reference. * of the GNU General Public License, incorporated herein by reference.
*/ */
#include <linux/sched.h> #include <linux/sched.h>
#include <linux/smp_lock.h>
#include <linux/module.h> #include <linux/module.h>
#include <linux/fs.h> #include <linux/fs.h>
#include <linux/interrupt.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) static int rng_dev_open (struct inode *inode, struct file *filp)
{ {
cycle_kernel_lock();
/* enforce read-only access to this chrdev */ /* enforce read-only access to this chrdev */
if ((filp->f_mode & FMODE_READ) == 0) if ((filp->f_mode & FMODE_READ) == 0)
return -EINVAL; return -EINVAL;