1 files changed, 40 insertions, 38 deletions

diff --git a/drivers/watchdog/cpwd.c b/drivers/watchdog/cpwd.c
index 261790afd65b..0c14586f58d4 100644
--- a/drivers/watchdog/cpwd.c
+++ b/drivers/watchdog/cpwd.c
@@ -1,13 +1,13 @@
 /* cpwd.c - driver implementation for hardware watchdog
  * timers found on Sun Microsystems CP1400 and CP1500 boards.
  *
- * This device supports both the generic Linux watchdog 
+ * This device supports both the generic Linux watchdog
  * interface and Solaris-compatible ioctls as best it is
  * able.
  *
  * NOTE:        CP1400 systems appear to have a defective intr_mask
  *                      register on the PLD, preventing the disabling of
- *                      timer interrupts.  We use a timer to periodically 
+ *                      timer interrupts.  We use a timer to periodically
  *                      reset 'stopped' watchdogs on affected platforms.
  *
  * Copyright (c) 2000 Eric Brower (ebrower@usa.net)
@@ -43,8 +43,8 @@
 #define WD_BLIMIT       0xFFFF
 
 #define WD0_MINOR       212
-#define WD1_MINOR       213     
-#define WD2_MINOR       214     
+#define WD1_MINOR       213
+#define WD2_MINOR       214
 
 /* Internal driver definitions.  */
 #define WD0_ID                  0
@@ -91,16 +91,16 @@ struct cpwd {
 
 static struct cpwd *cpwd_device;
 
-/* Sun uses Altera PLD EPF8820ATC144-4 
+/* Sun uses Altera PLD EPF8820ATC144-4
  * providing three hardware watchdogs:
  *
- *      1) RIC - sends an interrupt when triggered
- *      2) XIR - asserts XIR_B_RESET when triggered, resets CPU
- *      3) POR - asserts POR_B_RESET when triggered, resets CPU, backplane, board
+ * 1) RIC - sends an interrupt when triggered
+ * 2) XIR - asserts XIR_B_RESET when triggered, resets CPU
+ * 3) POR - asserts POR_B_RESET when triggered, resets CPU, backplane, board
  *
  *** Timer register block definition (struct wd_timer_regblk)
  *
- * dcntr and limit registers (halfword access):      
+ * dcntr and limit registers (halfword access):
  * -------------------
  * | 15 | ...| 1 | 0 |
  * -------------------
@@ -108,7 +108,8 @@ static struct cpwd *cpwd_device;
  * -------------------
  * dcntr -      Current 16-bit downcounter value.
  *                      When downcounter reaches '0' watchdog expires.
- *                      Reading this register resets downcounter with 'limit' value.
+ *                      Reading this register resets downcounter with
+ *                      'limit' value.
  * limit -      16-bit countdown value in 1/10th second increments.
  *                      Writing this register begins countdown with input value.
  *                      Reading from this register does not affect counter.
@@ -158,11 +159,11 @@ static int wd0_timeout = 0;
 static int wd1_timeout = 0;
 static int wd2_timeout = 0;
 
-module_param    (wd0_timeout, int, 0);
+module_param(wd0_timeout, int, 0);
 MODULE_PARM_DESC(wd0_timeout, "Default watchdog0 timeout in 1/10secs");
-module_param    (wd1_timeout, int, 0);
+module_param(wd1_timeout, int, 0);
 MODULE_PARM_DESC(wd1_timeout, "Default watchdog1 timeout in 1/10secs");
-module_param    (wd2_timeout, int, 0);
+module_param(wd2_timeout, int, 0);
 MODULE_PARM_DESC(wd2_timeout, "Default watchdog2 timeout in 1/10secs");
 
 MODULE_AUTHOR("Eric Brower <ebrower@usa.net>");
@@ -201,9 +202,9 @@ static u8 cpwd_readb(void __iomem *addr)
 static void cpwd_toggleintr(struct cpwd *p, int index, int enable)
 {
         unsigned char curregs = cpwd_readb(p->regs + PLD_IMASK);
-        unsigned char setregs = 
-                (index == -1) ? 
-                (WD0_INTR_MASK | WD1_INTR_MASK | WD2_INTR_MASK) : 
+        unsigned char setregs =
+                (index == -1) ?
+                (WD0_INTR_MASK | WD1_INTR_MASK | WD2_INTR_MASK) :
                 (p->devs[index].intr_mask);
 
         if (enable == WD_INTR_ON)
@@ -303,24 +304,24 @@ static int cpwd_getstatus(struct cpwd *p, int index)
         unsigned char ret  = WD_STOPPED;
 
         /* determine STOPPED */
-        if (!stat) 
+        if (!stat)
                 return ret;
 
         /* determine EXPIRED vs FREERUN vs RUNNING */
         else if (WD_S_EXPIRED & stat) {
                 ret = WD_EXPIRED;
-        } else if(WD_S_RUNNING & stat) {
+        } else if (WD_S_RUNNING & stat) {
                 if (intr & p->devs[index].intr_mask) {
                         ret = WD_FREERUN;
                 } else {
                         /* Fudge WD_EXPIRED status for defective CP1400--
-                         * IF timer is running 
-                         *      AND brokenstop is set 
+                         * IF timer is running
+                         *      AND brokenstop is set
                          *      AND an interrupt has been serviced
                          * we are WD_EXPIRED.
                          *
-                         * IF timer is running 
-                         *      AND brokenstop is set 
+                         * IF timer is running
+                         *      AND brokenstop is set
                          *      AND no interrupt has been serviced
                          * we are WD_FREERUN.
                          */
@@ -329,7 +330,8 @@ static int cpwd_getstatus(struct cpwd *p, int index)
                                 if (p->devs[index].runstatus & WD_STAT_SVCD) {
                                         ret = WD_EXPIRED;
                                 } else {
-                                        /* we could as well pretend we are expired */
+                                        /* we could as well pretend
+                                         * we are expired */
                                         ret = WD_FREERUN;
                                 }
                         } else {
@@ -342,7 +344,7 @@ static int cpwd_getstatus(struct cpwd *p, int index)
         if (p->devs[index].runstatus & WD_STAT_SVCD)
                 ret |= WD_SERVICED;
 
-        return(ret);
+        return ret;
 }
 
 static irqreturn_t cpwd_interrupt(int irq, void *dev_id)
@@ -367,22 +369,22 @@ static int cpwd_open(struct inode *inode, struct file *f)
         struct cpwd *p = cpwd_device;
 
         lock_kernel();
-        switch(iminor(inode)) {
-                case WD0_MINOR:
-                case WD1_MINOR:
-                case WD2_MINOR:
-                        break;
+        switch (iminor(inode)) {
+        case WD0_MINOR:
+        case WD1_MINOR:
+        case WD2_MINOR:
+                break;
 
-                default:
-                        unlock_kernel();
-                        return -ENODEV;
+        default:
+                unlock_kernel();
+                return -ENODEV;
         }
 
         /* Register IRQ on first open of device */
         if (!p->initialized) {
-                if (request_irq(p->irq, &cpwd_interrupt, 
+                if (request_irq(p->irq, &cpwd_interrupt,
                                 IRQF_SHARED, DRIVER_NAME, p)) {
-                        printk(KERN_ERR PFX "Cannot register IRQ %d\n", 
+                        printk(KERN_ERR PFX "Cannot register IRQ %d\n",
                                 p->irq);
                         unlock_kernel();
                         return -EBUSY;
@@ -442,7 +444,7 @@ static long cpwd_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
                         cpwd_starttimer(p, index);
                 } else {
                         return -EINVAL;
-                }       
+                }
                 break;
 
         /* Solaris-compatible IOCTLs */
@@ -458,7 +460,7 @@ static long cpwd_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 
         case WIOCSTOP:
                 if (p->enabled)
-                        return(-EINVAL);
+                        return -EINVAL;
 
                 cpwd_stoptimer(p, index);
                 break;
@@ -493,7 +495,7 @@ static long cpwd_compat_ioctl(struct file *file, unsigned int cmd,
         return rval;
 }
 
-static ssize_t cpwd_write(struct file *file, const char __user *buf, 
+static ssize_t cpwd_write(struct file *file, const char __user *buf,
                           size_t count, loff_t *ppos)
 {
         struct inode *inode = file->f_path.dentry->d_inode;
@@ -508,7 +510,7 @@ static ssize_t cpwd_write(struct file *file, const char __user *buf,
         return 0;
 }
 
-static ssize_t cpwd_read(struct file * file, char __user *buffer,
+static ssize_t cpwd_read(struct file *file, char __user *buffer,
                          size_t count, loff_t *ppos)
 {
         return -EINVAL;