diff options
Diffstat (limited to 'drivers/watchdog/advantechwdt.c')
| -rw-r--r-- | drivers/watchdog/advantechwdt.c | 39 |
1 files changed, 14 insertions, 25 deletions
diff --git a/drivers/watchdog/advantechwdt.c b/drivers/watchdog/advantechwdt.c index cc6702fc5268..42d3f3771781 100644 --- a/drivers/watchdog/advantechwdt.c +++ b/drivers/watchdog/advantechwdt.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Advantech Single Board Computer WDT driver * @@ -9,11 +10,6 @@ * (c) Copyright 1996 Alan Cox <alan@lxorguk.ukuu.org.uk>, * All Rights Reserved. * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - * * Neither Alan Cox nor CymruNet Ltd. admit liability nor provide * warranty for any of this software. This material is provided * "AS-IS" and at no charge. @@ -181,7 +177,7 @@ static long advwdt_ioctl(struct file *file, unsigned int cmd, unsigned long arg) if (advwdt_set_heartbeat(new_timeout)) return -EINVAL; advwdt_ping(); - /* Fall */ + fallthrough; case WDIOC_GETTIMEOUT: return put_user(timeout, p); default: @@ -199,7 +195,7 @@ static int advwdt_open(struct inode *inode, struct file *file) */ advwdt_ping(); - return nonseekable_open(inode, file); + return stream_open(inode, file); } static int advwdt_close(struct inode *inode, struct file *file) @@ -221,9 +217,9 @@ static int advwdt_close(struct inode *inode, struct file *file) static const struct file_operations advwdt_fops = { .owner = THIS_MODULE, - .llseek = no_llseek, .write = advwdt_write, .unlocked_ioctl = advwdt_ioctl, + .compat_ioctl = compat_ptr_ioctl, .open = advwdt_open, .release = advwdt_close, }; @@ -238,7 +234,7 @@ 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; @@ -282,14 +278,12 @@ unreg_stop: goto out; } -static int advwdt_remove(struct platform_device *dev) +static void advwdt_remove(struct platform_device *dev) { misc_deregister(&advwdt_miscdev); release_region(wdt_start, 1); if (wdt_stop != wdt_start) release_region(wdt_stop, 1); - - return 0; } static void advwdt_shutdown(struct platform_device *dev) @@ -299,11 +293,9 @@ static void advwdt_shutdown(struct platform_device *dev) } static struct platform_driver advwdt_driver = { - .probe = advwdt_probe, .remove = advwdt_remove, .shutdown = advwdt_shutdown, .driver = { - .owner = THIS_MODULE, .name = DRV_NAME, }, }; @@ -314,21 +306,19 @@ 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; } @@ -345,4 +335,3 @@ module_exit(advwdt_exit); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Marek Michalkiewicz <marekm@linux.org.pl>"); MODULE_DESCRIPTION("Advantech Single Board Computer WDT driver"); -MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); |