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[WATCHDOG 29/57] mv64x60_wdt: clean up and locking checks 

Review and switch to unlocked_ioctl

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
hifive-unleashed-5.1
Alan Cox 2008-05-19 14:07:26 +01:00 committed by Wim Van Sebroeck
parent ed78c2da14
commit a86b849868
1 changed files with 11 additions and 9 deletions
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20
drivers/watchdog/mv64x60_wdt.c
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@ -8,7 +8,7 @@
* and services the watchdog.
*
* Derived from mpc8xx_wdt.c, with the following copyright.
*
*
* 2002 (c) Florian Schirmer <jolt@tuxbox.org> This file is licensed under
* the terms of the GNU General Public License version 2. This program
* is licensed "as is" without any warranty of any kind, whether express
@ -24,8 +24,8 @@
#include <linux/platform_device.h>
#include <linux/mv643xx.h>
#include <asm/uaccess.h>
#include <asm/io.h>
#include <linux/uaccess.h>
#include <linux/io.h>
#define MV64x60_WDT_WDC_OFFSET 0
@ -61,7 +61,9 @@ static DEFINE_SPINLOCK(mv64x60_wdt_spinlock);
static int nowayout = WATCHDOG_NOWAYOUT;
module_param(nowayout, int, 0);
MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
MODULE_PARM_DESC(nowayout,
"Watchdog cannot be stopped once started (default="
__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
static int mv64x60_wdt_toggle_wdc(int enabled_predicate, int field_shift)
{
@ -150,7 +152,7 @@ static int mv64x60_wdt_release(struct inode *inode, struct file *file)
}
static ssize_t mv64x60_wdt_write(struct file *file, const char __user *data,
size_t len, loff_t * ppos)
size_t len, loff_t *ppos)
{
if (len) {
if (!nowayout) {
@ -160,7 +162,7 @@ static ssize_t mv64x60_wdt_write(struct file *file, const char __user *data,
for (i = 0; i != len; i++) {
char c;
if(get_user(c, data + i))
if (get_user(c, data + i))
return -EFAULT;
if (c == 'V')
expect_close = 42;
@ -172,8 +174,8 @@ static ssize_t mv64x60_wdt_write(struct file *file, const char __user *data,
return len;
}
static int mv64x60_wdt_ioctl(struct inode *inode, struct file *file,
unsigned int cmd, unsigned long arg)
static long mv64x60_wdt_ioctl(struct file *file,
unsigned int cmd, unsigned long arg)
{
int timeout;
int options;
@ -240,7 +242,7 @@ static const struct file_operations mv64x60_wdt_fops = {
.owner = THIS_MODULE,
.llseek = no_llseek,
.write = mv64x60_wdt_write,
.ioctl = mv64x60_wdt_ioctl,
.unlocked_ioctl = mv64x60_wdt_ioctl,
.open = mv64x60_wdt_open,
.release = mv64x60_wdt_release,
};