[WATCHDOG 12/57] ib700wdt: clean up and switch to unlocked_ioctl

Review and switch to unlocked_ioctl

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

1 files changed, 52 insertions, 51 deletions

diff --git a/drivers/watchdog/ib700wdt.c b/drivers/watchdog/ib700wdt.c
index 4b89f401691a..805a54b02aa1 100644
--- a/drivers/watchdog/ib700wdt.c
+++ b/drivers/watchdog/ib700wdt.c
@@ -42,8 +42,8 @@
 #include <linux/moduleparam.h>
 #include <linux/platform_device.h>
 
-#include <asm/io.h>
-#include <asm/uaccess.h>
+#include <linux/io.h>
+#include <linux/uaccess.h>
 #include <asm/system.h>
 
 static struct platform_device *ibwdt_platform_device;
@@ -120,7 +120,9 @@ static int wd_margin = WD_TIMO;
 
 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) ")");
 
 
 /*
@@ -165,8 +167,8 @@ ibwdt_set_heartbeat(int t)
  *      /dev/watchdog handling
  */
 
-static ssize_t
-ibwdt_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos)
+static ssize_t ibwdt_write(struct file *file, const char __user *buf,
+                                                size_t count, loff_t *ppos)
 {
         if (count) {
                 if (!nowayout) {
@@ -188,77 +190,71 @@ ibwdt_write(struct file *file, const char __user *buf, size_t count, loff_t *ppo
         return count;
 }
 
-static int
-ibwdt_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
-          unsigned long arg)
+static long ibwdt_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 {
         int new_margin;
         void __user *argp = (void __user *)arg;
         int __user *p = argp;
 
         static struct watchdog_info ident = {
-                .options = WDIOF_KEEPALIVEPING | WDIOF_SETTIMEOUT | WDIOF_MAGICCLOSE,
+                .options = WDIOF_KEEPALIVEPING | WDIOF_SETTIMEOUT
+                                                        | WDIOF_MAGICCLOSE,
                 .firmware_version = 1,
                 .identity = "IB700 WDT",
         };
 
         switch (cmd) {
         case WDIOC_GETSUPPORT:
-          if (copy_to_user(argp, &ident, sizeof(ident)))
-            return -EFAULT;
-          break;
+                if (copy_to_user(argp, &ident, sizeof(ident)))
+                        return -EFAULT;
+                break;
 
         case WDIOC_GETSTATUS:
         case WDIOC_GETBOOTSTATUS:
-          return put_user(0, p);
+                return put_user(0, p);
 
         case WDIOC_KEEPALIVE:
-          ibwdt_ping();
-          break;
+                ibwdt_ping();
+                break;
 
         case WDIOC_SETTIMEOUT:
-          if (get_user(new_margin, p))
-                  return -EFAULT;
-          if (ibwdt_set_heartbeat(new_margin))
-                  return -EINVAL;
-          ibwdt_ping();
-          /* Fall */
+                if (get_user(new_margin, p))
+                        return -EFAULT;
+                if (ibwdt_set_heartbeat(new_margin))
+                        return -EINVAL;
+                ibwdt_ping();
+                /* Fall */
 
         case WDIOC_GETTIMEOUT:
-          return put_user(wd_times[wd_margin], p);
+                return put_user(wd_times[wd_margin], p);
 
         case WDIOC_SETOPTIONS:
         {
-          int options, retval = -EINVAL;
+                int options, retval = -EINVAL;
 
-          if (get_user(options, p))
-            return -EFAULT;
+                if (get_user(options, p))
+                        return -EFAULT;
 
-          if (options & WDIOS_DISABLECARD) {
-            ibwdt_disable();
-            retval = 0;
-          }
-
-          if (options & WDIOS_ENABLECARD) {
-            ibwdt_ping();
-            retval = 0;
-          }
-
-          return retval;
+                if (options & WDIOS_DISABLECARD) {
+                        ibwdt_disable();
+                        retval = 0;
+                }
+                if (options & WDIOS_ENABLECARD) {
+                        ibwdt_ping();
+                        retval = 0;
+                }
+                return retval;
         }
-
         default:
-          return -ENOTTY;
+                return -ENOTTY;
         }
         return 0;
 }
 
-static int
-ibwdt_open(struct inode *inode, struct file *file)
+static int ibwdt_open(struct inode *inode, struct file *file)
 {
-        if (test_and_set_bit(0, &ibwdt_is_open)) {
+        if (test_and_set_bit(0, &ibwdt_is_open))
                 return -EBUSY;
-        }
         if (nowayout)
                 __module_get(THIS_MODULE);
 
@@ -273,7 +269,8 @@ ibwdt_close(struct inode *inode, struct file *file)
         if (expect_close == 42) {
                 ibwdt_disable();
         } else {
-                printk(KERN_CRIT PFX "WDT device closed unexpectedly.  WDT will not stop!\n");
+                printk(KERN_CRIT PFX
+                     "WDT device closed unexpectedly.  WDT will not stop!\n");
                 ibwdt_ping();
         }
         clear_bit(0, &ibwdt_is_open);
@@ -289,7 +286,7 @@ static const struct file_operations ibwdt_fops = {
         .owner          = THIS_MODULE,
         .llseek         = no_llseek,
         .write          = ibwdt_write,
-        .ioctl          = ibwdt_ioctl,
+        .unlocked_ioctl = ibwdt_ioctl,
         .open           = ibwdt_open,
         .release        = ibwdt_close,
 };
@@ -310,21 +307,23 @@ static int __devinit ibwdt_probe(struct platform_device *dev)
 
 #if WDT_START != WDT_STOP
         if (!request_region(WDT_STOP, 1, "IB700 WDT")) {
-                printk (KERN_ERR PFX "STOP method I/O %X is not available.\n", WDT_STOP);
+                printk(KERN_ERR PFX "STOP method I/O %X is not available.\n",
+                                                                WDT_STOP);
                 res = -EIO;
                 goto out_nostopreg;
         }
 #endif
 
         if (!request_region(WDT_START, 1, "IB700 WDT")) {
-                printk (KERN_ERR PFX "START method I/O %X is not available.\n", WDT_START);
+                printk(KERN_ERR PFX "START method I/O %X is not available.\n",
+                                                                WDT_START);
                 res = -EIO;
                 goto out_nostartreg;
         }
 
         res = misc_register(&ibwdt_miscdev);
         if (res) {
-                printk (KERN_ERR PFX "failed to register misc device\n");
+                printk(KERN_ERR PFX "failed to register misc device\n");
                 goto out_nomisc;
         }
         return 0;
@@ -342,9 +341,9 @@ out_nostopreg:
 static int __devexit ibwdt_remove(struct platform_device *dev)
 {
         misc_deregister(&ibwdt_miscdev);
-        release_region(WDT_START,1);
+        release_region(WDT_START, 1);
 #if WDT_START != WDT_STOP
-        release_region(WDT_STOP,1);
+        release_region(WDT_STOP, 1);
 #endif
         return 0;
 }
@@ -369,13 +368,15 @@ static int __init ibwdt_init(void)
 {
         int err;
 
-        printk(KERN_INFO PFX "WDT driver for IB700 single board computer initialising.\n");
+        printk(KERN_INFO PFX
+                "WDT driver for IB700 single board computer initialising.\n");
 
         err = platform_driver_register(&ibwdt_driver);
         if (err)
                 return err;
 
-        ibwdt_platform_device = platform_device_register_simple(DRV_NAME, -1, NULL, 0);
+        ibwdt_platform_device = platform_device_register_simple(DRV_NAME,
+                                                                -1, NULL, 0);
         if (IS_ERR(ibwdt_platform_device)) {
                 err = PTR_ERR(ibwdt_platform_device);
                 goto unreg_platform_driver;