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path: root/drivers/watchdog/omap_wdt.c
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Diffstat (limited to 'drivers/watchdog/omap_wdt.c')
-rw-r--r--drivers/watchdog/omap_wdt.c19
1 files changed, 5 insertions, 14 deletions
diff --git a/drivers/watchdog/omap_wdt.c b/drivers/watchdog/omap_wdt.c
index 2b4acb86c19..d19ff5145e8 100644
--- a/drivers/watchdog/omap_wdt.c
+++ b/drivers/watchdog/omap_wdt.c
@@ -55,7 +55,7 @@ module_param(timer_margin, uint, 0);
MODULE_PARM_DESC(timer_margin, "initial watchdog timeout (in seconds)");
static unsigned int wdt_trgr_pattern = 0x1234;
-static spinlock_t wdt_lock;
+static DEFINE_SPINLOCK(wdt_lock);
struct omap_wdt_dev {
void __iomem *base; /* physical */
@@ -232,6 +232,7 @@ static long omap_wdt_ioctl(struct file *file, unsigned int cmd,
if (cpu_is_omap24xx())
return put_user(omap_prcm_get_reset_sources(),
(int __user *)arg);
+ return put_user(0, (int __user *)arg);
case WDIOC_KEEPALIVE:
pm_runtime_get_sync(wdev->dev);
spin_lock(&wdt_lock);
@@ -338,6 +339,7 @@ static int __devinit omap_wdt_probe(struct platform_device *pdev)
return 0;
err_misc:
+ pm_runtime_disable(wdev->dev);
platform_set_drvdata(pdev, NULL);
iounmap(wdev->base);
@@ -370,6 +372,7 @@ static int __devexit omap_wdt_remove(struct platform_device *pdev)
struct omap_wdt_dev *wdev = platform_get_drvdata(pdev);
struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ pm_runtime_disable(wdev->dev);
if (!res)
return -ENOENT;
@@ -437,19 +440,7 @@ static struct platform_driver omap_wdt_driver = {
},
};
-static int __init omap_wdt_init(void)
-{
- spin_lock_init(&wdt_lock);
- return platform_driver_register(&omap_wdt_driver);
-}
-
-static void __exit omap_wdt_exit(void)
-{
- platform_driver_unregister(&omap_wdt_driver);
-}
-
-module_init(omap_wdt_init);
-module_exit(omap_wdt_exit);
+module_platform_driver(omap_wdt_driver);
MODULE_AUTHOR("George G. Davis");
MODULE_LICENSE("GPL");