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path: root/drivers/sbus/char/display7seg.c
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Diffstat (limited to 'drivers/sbus/char/display7seg.c')
-rw-r--r--drivers/sbus/char/display7seg.c16
1 files changed, 8 insertions, 8 deletions
diff --git a/drivers/sbus/char/display7seg.c b/drivers/sbus/char/display7seg.c
index 7baf1b644039..1690e53fb84a 100644
--- a/drivers/sbus/char/display7seg.c
+++ b/drivers/sbus/char/display7seg.c
@@ -13,7 +13,7 @@
#include <linux/miscdevice.h>
#include <linux/ioport.h> /* request_region */
#include <linux/slab.h>
-#include <linux/smp_lock.h>
+#include <linux/mutex.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <asm/atomic.h>
@@ -26,6 +26,7 @@
#define DRIVER_NAME "d7s"
#define PFX DRIVER_NAME ": "
+static DEFINE_MUTEX(d7s_mutex);
static int sol_compat = 0; /* Solaris compatibility mode */
/* Solaris compatibility flag -
@@ -74,7 +75,6 @@ static int d7s_open(struct inode *inode, struct file *f)
{
if (D7S_MINOR != iminor(inode))
return -ENODEV;
- cycle_kernel_lock();
atomic_inc(&d7s_users);
return 0;
}
@@ -110,7 +110,7 @@ static long d7s_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
if (D7S_MINOR != iminor(file->f_path.dentry->d_inode))
return -ENODEV;
- lock_kernel();
+ mutex_lock(&d7s_mutex);
switch (cmd) {
case D7SIOCWR:
/* assign device register values we mask-out D7S_FLIP
@@ -151,7 +151,7 @@ static long d7s_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
writeb(regs, p->regs);
break;
};
- unlock_kernel();
+ mutex_unlock(&d7s_mutex);
return error;
}
@@ -170,7 +170,7 @@ static struct miscdevice d7s_miscdev = {
.fops = &d7s_fops
};
-static int __devinit d7s_probe(struct of_device *op,
+static int __devinit d7s_probe(struct platform_device *op,
const struct of_device_id *match)
{
struct device_node *opts;
@@ -236,7 +236,7 @@ out_free:
goto out;
}
-static int __devexit d7s_remove(struct of_device *op)
+static int __devexit d7s_remove(struct platform_device *op)
{
struct d7s *p = dev_get_drvdata(&op->dev);
u8 regs = readb(p->regs);
@@ -277,12 +277,12 @@ static struct of_platform_driver d7s_driver = {
static int __init d7s_init(void)
{
- return of_register_driver(&d7s_driver, &of_bus_type);
+ return of_register_platform_driver(&d7s_driver);
}
static void __exit d7s_exit(void)
{
- of_unregister_driver(&d7s_driver);
+ of_unregister_platform_driver(&d7s_driver);
}
module_init(d7s_init);