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| author | Jean Delvare <jdelvare@suse.de> | 2014-03-14 13:04:37 +0100 |
|---|---|---|
| committer | Wim Van Sebroeck <wim@iguana.be> | 2014-03-31 13:34:30 +0200 |
| commit | b0e0b4b5984ab1d59bc8569d28e499820b8ea8d8 (patch) | |
| tree | 30b60ccd17c9782b63987b95cbf9e68db979ba2a /drivers/watchdog/acquirewdt.c | |
| parent | c90789baa8cec363093c5ec292c989b6f22d8f32 (diff) | |
| download | lwn-b0e0b4b5984ab1d59bc8569d28e499820b8ea8d8.tar.gz lwn-b0e0b4b5984ab1d59bc8569d28e499820b8ea8d8.zip | |
watchdog: acquirewdt: 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>
Diffstat (limited to 'drivers/watchdog/acquirewdt.c')
| -rw-r--r-- | drivers/watchdog/acquirewdt.c | 21 |
1 files changed, 9 insertions, 12 deletions
diff --git a/drivers/watchdog/acquirewdt.c b/drivers/watchdog/acquirewdt.c index 5cf1621def9c..5614416f1032 100644 --- a/drivers/watchdog/acquirewdt.c +++ b/drivers/watchdog/acquirewdt.c @@ -239,7 +239,7 @@ static struct miscdevice acq_miscdev = { * Init & exit routines */ -static int acq_probe(struct platform_device *dev) +static int __init acq_probe(struct platform_device *dev) { int ret; @@ -291,7 +291,6 @@ static void acq_shutdown(struct platform_device *dev) } static struct platform_driver acquirewdt_driver = { - .probe = acq_probe, .remove = acq_remove, .shutdown = acq_shutdown, .driver = { @@ -306,20 +305,18 @@ static int __init acq_init(void) pr_info("WDT driver for Acquire single board computer initialising\n"); - err = platform_driver_register(&acquirewdt_driver); - if (err) - return err; - acq_platform_device = platform_device_register_simple(DRV_NAME, -1, NULL, 0); - if (IS_ERR(acq_platform_device)) { - err = PTR_ERR(acq_platform_device); - goto unreg_platform_driver; - } + if (IS_ERR(acq_platform_device)) + return PTR_ERR(acq_platform_device); + + err = platform_driver_probe(&acquirewdt_driver, acq_probe); + if (err) + goto unreg_platform_device; return 0; -unreg_platform_driver: - platform_driver_unregister(&acquirewdt_driver); +unreg_platform_device: + platform_device_unregister(acq_platform_device); return err; } |