From acaaaf62c94a786f68b35cd06979fbd2fcedc89b Mon Sep 17 00:00:00 2001 From: Jean Delvare Date: Fri, 14 Mar 2014 13:07:40 +0100 Subject: [PATCH] watchdog: advantechwdt: 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 Reviewed-by: Guenter Roeck Signed-off-by: Wim Van Sebroeck --- drivers/watchdog/advantechwdt.c | 21 +++++++++------------ 1 file changed, 9 insertions(+), 12 deletions(-) diff --git a/drivers/watchdog/advantechwdt.c b/drivers/watchdog/advantechwdt.c index a8961addc59c..7796db7fa6e1 100644 --- a/drivers/watchdog/advantechwdt.c +++ b/drivers/watchdog/advantechwdt.c @@ -238,7 +238,7 @@ static struct miscdevice advwdt_miscdev = { * Init & exit routines */ -static int advwdt_probe(struct platform_device *dev) +static int __init advwdt_probe(struct platform_device *dev) { int ret; @@ -299,7 +299,6 @@ static void advwdt_shutdown(struct platform_device *dev) } static struct platform_driver advwdt_driver = { - .probe = advwdt_probe, .remove = advwdt_remove, .shutdown = advwdt_shutdown, .driver = { @@ -314,21 +313,19 @@ static int __init advwdt_init(void) pr_info("WDT driver for Advantech single board computer initialising\n"); - err = platform_driver_register(&advwdt_driver); - if (err) - return err; - advwdt_platform_device = platform_device_register_simple(DRV_NAME, -1, NULL, 0); - if (IS_ERR(advwdt_platform_device)) { - err = PTR_ERR(advwdt_platform_device); - goto unreg_platform_driver; - } + if (IS_ERR(advwdt_platform_device)) + return PTR_ERR(advwdt_platform_device); + + err = platform_driver_probe(&advwdt_driver, advwdt_probe); + if (err) + goto unreg_platform_device; return 0; -unreg_platform_driver: - platform_driver_unregister(&advwdt_driver); +unreg_platform_device: + platform_device_unregister(advwdt_platform_device); return err; }