watchdog: geodewdt: Use platform_driver_probe
Using platform_driver_probe instead of platform_driver_register has
two benefits:
* The driver will fail to load if device probing fails.
* The probe function can be marked __init.
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
diff --git a/drivers/watchdog/geodewdt.c b/drivers/watchdog/geodewdt.c
index 4a6ae84..4c43e3f 100644
--- a/drivers/watchdog/geodewdt.c
+++ b/drivers/watchdog/geodewdt.c
@@ -215,7 +215,7 @@
.fops = &geodewdt_fops,
};
-static int geodewdt_probe(struct platform_device *dev)
+static int __init geodewdt_probe(struct platform_device *dev)
{
int ret;
@@ -255,7 +255,6 @@
}
static struct platform_driver geodewdt_driver = {
- .probe = geodewdt_probe,
.remove = geodewdt_remove,
.shutdown = geodewdt_shutdown,
.driver = {
@@ -268,20 +267,18 @@
{
int ret;
- ret = platform_driver_register(&geodewdt_driver);
- if (ret)
- return ret;
-
geodewdt_platform_device = platform_device_register_simple(DRV_NAME,
-1, NULL, 0);
- if (IS_ERR(geodewdt_platform_device)) {
- ret = PTR_ERR(geodewdt_platform_device);
+ if (IS_ERR(geodewdt_platform_device))
+ return PTR_ERR(geodewdt_platform_device);
+
+ ret = platform_driver_probe(&geodewdt_driver, geodewdt_probe);
+ if (ret)
goto err;
- }
return 0;
err:
- platform_driver_unregister(&geodewdt_driver);
+ platform_device_unregister(geodewdt_platform_device);
return ret;
}