diff options
Diffstat (limited to 'drivers/watchdog/watchdog_dev.c')
| -rw-r--r-- | drivers/watchdog/watchdog_dev.c | 26 |
1 files changed, 22 insertions, 4 deletions
diff --git a/drivers/watchdog/watchdog_dev.c b/drivers/watchdog/watchdog_dev.c index 56a649e66eb2..055a4e1b4c13 100644 --- a/drivers/watchdog/watchdog_dev.c +++ b/drivers/watchdog/watchdog_dev.c @@ -581,18 +581,35 @@ int watchdog_dev_unregister(struct watchdog_device *wdd) return 0; } +static struct class watchdog_class = { + .name = "watchdog", + .owner = THIS_MODULE, +}; + /* * watchdog_dev_init: init dev part of watchdog core * * Allocate a range of chardev nodes to use for watchdog devices */ -int __init watchdog_dev_init(void) +struct class * __init watchdog_dev_init(void) { - int err = alloc_chrdev_region(&watchdog_devt, 0, MAX_DOGS, "watchdog"); - if (err < 0) + int err; + + err = class_register(&watchdog_class); + if (err < 0) { + pr_err("couldn't register class\n"); + return ERR_PTR(err); + } + + err = alloc_chrdev_region(&watchdog_devt, 0, MAX_DOGS, "watchdog"); + if (err < 0) { pr_err("watchdog: unable to allocate char dev region\n"); - return err; + class_unregister(&watchdog_class); + return ERR_PTR(err); + } + + return &watchdog_class; } /* @@ -604,4 +621,5 @@ int __init watchdog_dev_init(void) void __exit watchdog_dev_exit(void) { unregister_chrdev_region(watchdog_devt, MAX_DOGS); + class_unregister(&watchdog_class); } |