watchdog: fix platform driver hotplug/coldplug

[linux-2.6-omap-h63xx.git] / drivers / watchdog / davinci_wdt.c

diff --git a/drivers/watchdog/davinci_wdt.c b/drivers/watchdog/davinci_wdt.c
index 19db5302ba6efffa7fde8b3077361d514fc9ecdd..1782c79eff0646ad9b2aa5b4eb63b36e100d2cca 100644 (file)
--- a/drivers/watchdog/davinci_wdt.c
+++ b/drivers/watchdog/davinci_wdt.c
@@ -61,7 +61,7 @@
 
 static int heartbeat = DEFAULT_HEARTBEAT;
 
-static spinlock_t io_lock;
+static DEFINE_SPINLOCK(io_lock);
 static unsigned long wdt_status;
 #define WDT_IN_USE        0
 #define WDT_OK_TO_CLOSE   1
@@ -200,8 +200,6 @@ static int davinci_wdt_probe(struct platform_device *pdev)
        int ret = 0, size;
        struct resource *res;
 
-       spin_lock_init(&io_lock);
-
        if (heartbeat < 1 || heartbeat > MAX_HEARTBEAT)
                heartbeat = DEFAULT_HEARTBEAT;
 
@@ -250,6 +248,7 @@ static int davinci_wdt_remove(struct platform_device *pdev)
 static struct platform_driver platform_wdt_driver = {
        .driver = {
                .name = "watchdog",
+               .owner  = THIS_MODULE,
        },
        .probe = davinci_wdt_probe,
        .remove = davinci_wdt_remove,
@@ -262,7 +261,7 @@ static int __init davinci_wdt_init(void)
 
 static void __exit davinci_wdt_exit(void)
 {
-       return platform_driver_unregister(&platform_wdt_driver);
+       platform_driver_unregister(&platform_wdt_driver);
 }
 
 module_init(davinci_wdt_init);
@@ -279,3 +278,4 @@ MODULE_PARM_DESC(heartbeat,
 
 MODULE_LICENSE("GPL");
 MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
+MODULE_ALIAS("platform:watchdog");