summaryrefslogtreecommitdiffstats
path: root/arch/cris
diff options
context:
space:
mode:
Diffstat (limited to 'arch/cris')
-rw-r--r--arch/cris/arch-v10/drivers/eeprom.c2
-rw-r--r--arch/cris/arch-v10/drivers/i2c.c2
-rw-r--r--arch/cris/arch-v32/drivers/cryptocop.c2
-rw-r--r--arch/cris/arch-v32/drivers/i2c.c12
4 files changed, 6 insertions, 12 deletions
diff --git a/arch/cris/arch-v10/drivers/eeprom.c b/arch/cris/arch-v10/drivers/eeprom.c
index c3405507a3d..5047a33043b 100644
--- a/arch/cris/arch-v10/drivers/eeprom.c
+++ b/arch/cris/arch-v10/drivers/eeprom.c
@@ -28,7 +28,6 @@
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
-#include <linux/smp_lock.h>
#include <linux/wait.h>
#include <asm/uaccess.h>
#include "i2c.h"
@@ -376,7 +375,6 @@ int __init eeprom_init(void)
/* Opens the device. */
static int eeprom_open(struct inode * inode, struct file * file)
{
- cycle_kernel_lock();
if(iminor(inode) != EEPROM_MINOR_NR)
return -ENXIO;
if(imajor(inode) != EEPROM_MAJOR_NR)
diff --git a/arch/cris/arch-v10/drivers/i2c.c b/arch/cris/arch-v10/drivers/i2c.c
index 399e089bed7..54e2e1adf08 100644
--- a/arch/cris/arch-v10/drivers/i2c.c
+++ b/arch/cris/arch-v10/drivers/i2c.c
@@ -14,7 +14,6 @@
#include <linux/module.h>
#include <linux/sched.h>
-#include <linux/smp_lock.h>
#include <linux/errno.h>
#include <linux/kernel.h>
#include <linux/fs.h>
@@ -566,7 +565,6 @@ i2c_readreg(unsigned char theSlave, unsigned char theReg)
static int
i2c_open(struct inode *inode, struct file *filp)
{
- cycle_kernel_lock();
return 0;
}
diff --git a/arch/cris/arch-v32/drivers/cryptocop.c b/arch/cris/arch-v32/drivers/cryptocop.c
index 9cfbfae107c..b07646a3050 100644
--- a/arch/cris/arch-v32/drivers/cryptocop.c
+++ b/arch/cris/arch-v32/drivers/cryptocop.c
@@ -11,7 +11,6 @@
#include <linux/string.h>
#include <linux/fs.h>
#include <linux/mm.h>
-#include <linux/smp_lock.h>
#include <linux/spinlock.h>
#include <linux/stddef.h>
@@ -2307,7 +2306,6 @@ static int cryptocop_open(struct inode *inode, struct file *filp)
{
int p = iminor(inode);
- cycle_kernel_lock();
if (p != CRYPTOCOP_MINOR) return -EINVAL;
filp->private_data = NULL;
diff --git a/arch/cris/arch-v32/drivers/i2c.c b/arch/cris/arch-v32/drivers/i2c.c
index 2fd6a740d89..5a3e900c9a7 100644
--- a/arch/cris/arch-v32/drivers/i2c.c
+++ b/arch/cris/arch-v32/drivers/i2c.c
@@ -32,7 +32,7 @@
#include <linux/fs.h>
#include <linux/string.h>
#include <linux/init.h>
-#include <linux/smp_lock.h>
+#include <linux/mutex.h>
#include <asm/etraxi2c.h>
@@ -47,6 +47,7 @@
#define D(x)
#define I2C_MAJOR 123 /* LOCAL/EXPERIMENTAL */
+static DEFINE_MUTEX(i2c_mutex);
static const char i2c_name[] = "i2c";
#define CLOCK_LOW_TIME 8
@@ -636,7 +637,6 @@ i2c_readreg(unsigned char theSlave, unsigned char theReg)
static int
i2c_open(struct inode *inode, struct file *filp)
{
- cycle_kernel_lock();
return 0;
}
@@ -665,11 +665,11 @@ i2c_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
I2C_ARGREG(arg),
I2C_ARGVALUE(arg)));
- lock_kernel();
+ mutex_lock(&i2c_mutex);
ret = i2c_writereg(I2C_ARGSLAVE(arg),
I2C_ARGREG(arg),
I2C_ARGVALUE(arg));
- unlock_kernel();
+ mutex_unlock(&i2c_mutex);
return ret;
case I2C_READREG:
@@ -679,9 +679,9 @@ i2c_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
D(printk("i2cr %d %d ",
I2C_ARGSLAVE(arg),
I2C_ARGREG(arg)));
- lock_kernel();
+ mutex_lock(&i2c_mutex);
val = i2c_readreg(I2C_ARGSLAVE(arg), I2C_ARGREG(arg));
- unlock_kernel();
+ mutex_unlock(&i2c_mutex);
D(printk("= %d\n", val));
return val;
}