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Subject[patch 19/21] mutex subsystem, semaphore to completion: CPU3WDT
From: Steven Rostedt <rostedt@goodmis.org>

change CPU3WDT semaphores to completions.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

----

drivers/char/watchdog/cpu5wdt.c | 9 +++++----
1 files changed, 5 insertions(+), 4 deletions(-)

Index: linux/drivers/char/watchdog/cpu5wdt.c
===================================================================
--- linux.orig/drivers/char/watchdog/cpu5wdt.c
+++ linux/drivers/char/watchdog/cpu5wdt.c
@@ -28,6 +28,7 @@
#include <linux/init.h>
#include <linux/ioport.h>
#include <linux/timer.h>
+#include <linux/completion.h>
#include <linux/jiffies.h>
#include <asm/io.h>
#include <asm/uaccess.h>
@@ -57,7 +58,7 @@ static int ticks = 10000;
/* some device data */

static struct {
- struct semaphore stop;
+ struct completion stop;
volatile int running;
struct timer_list timer;
volatile int queue;
@@ -85,7 +86,7 @@ static void cpu5wdt_trigger(unsigned lon
}
else {
/* ticks doesn't matter anyway */
- up(&cpu5wdt_device.stop);
+ complete(&cpu5wdt_device.stop);
}

}
@@ -239,7 +240,7 @@ static int __devinit cpu5wdt_init(void)
if ( !val )
printk(KERN_INFO PFX "sorry, was my fault\n");

- init_MUTEX_LOCKED(&cpu5wdt_device.stop);
+ init_completion(&cpu5wdt_device.stop);
cpu5wdt_device.queue = 0;

clear_bit(0, &cpu5wdt_device.inuse);
@@ -269,7 +270,7 @@ static void __devexit cpu5wdt_exit(void)
{
if ( cpu5wdt_device.queue ) {
cpu5wdt_device.queue = 0;
- down(&cpu5wdt_device.stop);
+ wait_for_completion(&cpu5wdt_device.stop);
}

misc_deregister(&cpu5wdt_misc);
-
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