#include <linux/watchdog.h>
#include <linux/notifier.h>
#include <linux/reboot.h>
+#include <linux/fs.h>
#include <linux/pci.h>
#include <linux/scx200.h>
return -EBUSY;
scx200_wdt_enable();
- return 0;
+ return nonseekable_open(inode, file);
}
static int scx200_wdt_release(struct inode *inode, struct file *file)
.notifier_call = scx200_wdt_notify_sys,
};
-static ssize_t scx200_wdt_write(struct file *file, const char *data,
+static ssize_t scx200_wdt_write(struct file *file, const char __user *data,
size_t len, loff_t *ppos)
{
- if (ppos != &file->f_pos)
- return -ESPIPE;
-
/* check for a magic close character */
if (len)
{
static int scx200_wdt_ioctl(struct inode *inode, struct file *file,
unsigned int cmd, unsigned long arg)
{
+ void __user *argp = (void __user *)arg;
+ int __user *p = argp;
static struct watchdog_info ident = {
.identity = "NatSemi SCx200 Watchdog",
.firmware_version = 1,
default:
return -ENOIOCTLCMD;
case WDIOC_GETSUPPORT:
- if(copy_to_user((struct watchdog_info *)arg, &ident,
- sizeof(ident)))
+ if(copy_to_user(argp, &ident, sizeof(ident)))
return -EFAULT;
return 0;
case WDIOC_GETSTATUS:
case WDIOC_GETBOOTSTATUS:
- if (put_user(0, (int *)arg))
+ if (put_user(0, p))
return -EFAULT;
return 0;
case WDIOC_KEEPALIVE:
scx200_wdt_ping();
return 0;
case WDIOC_SETTIMEOUT:
- if (get_user(new_margin, (int *)arg))
+ if (get_user(new_margin, p))
return -EFAULT;
if (new_margin < 1)
return -EINVAL;
scx200_wdt_update_margin();
scx200_wdt_ping();
case WDIOC_GETTIMEOUT:
- if (put_user(margin, (int *)arg))
+ if (put_user(margin, p))
return -EFAULT;
return 0;
}
static struct file_operations scx200_wdt_fops = {
.owner = THIS_MODULE,
+ .llseek = no_llseek,
.write = scx200_wdt_write,
.ioctl = scx200_wdt_ioctl,
.open = scx200_wdt_open,
static int __init scx200_wdt_init(void)
{
int r;
+ static struct pci_device_id ns_sc[] = {
+ { PCI_DEVICE(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_SCx200_BRIDGE) },
+ { PCI_DEVICE(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_SC1100_BRIDGE) },
+ { },
+ };
printk(KERN_DEBUG NAME ": NatSemi SCx200 Watchdog Driver\n");
- /* First check that this really is a NatSemi SCx200 CPU */
- if ((pci_find_device(PCI_VENDOR_ID_NS,
- PCI_DEVICE_ID_NS_SCx200_BRIDGE,
- NULL)) == NULL)
+ /*
+ * First check that this really is a NatSemi SCx200 CPU or a Geode
+ * SC1100 processor
+ */
+ if (!pci_dev_present(ns_sc))
return -ENODEV;
/* More sanity checks, verify that the configuration block is there */