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watchdog: geodewdt: Use platform_driver_probe

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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>
This commit is contained in:
Jean Delvare 2014-03-14 13:16:47 +01:00 committed by Wim Van Sebroeck
parent acaaaf62c9
commit 78411be4c7
1 changed files with 7 additions and 10 deletions
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17
drivers/watchdog/geodewdt.c
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@ -215,7 +215,7 @@ static struct miscdevice geodewdt_miscdev = {
.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 void geodewdt_shutdown(struct platform_device *dev)
}
static struct platform_driver geodewdt_driver = {
.probe = geodewdt_probe,
.remove = geodewdt_remove,
.shutdown = geodewdt_shutdown,
.driver = {
@ -268,20 +267,18 @@ static int __init geodewdt_init(void)
{
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;
}