random32: fix off-by-one in seeding requirement
[linux-3.10.git] / lib / of-reconfig-notifier-error-inject.c
1 #include <linux/kernel.h>
2 #include <linux/module.h>
3 #include <linux/of.h>
4
5 #include "notifier-error-inject.h"
6
7 static int priority;
8 module_param(priority, int, 0);
9 MODULE_PARM_DESC(priority, "specify OF reconfig notifier priority");
10
11 static struct notifier_err_inject reconfig_err_inject = {
12         .actions = {
13                 { NOTIFIER_ERR_INJECT_ACTION(OF_RECONFIG_ATTACH_NODE) },
14                 { NOTIFIER_ERR_INJECT_ACTION(OF_RECONFIG_DETACH_NODE) },
15                 { NOTIFIER_ERR_INJECT_ACTION(OF_RECONFIG_ADD_PROPERTY) },
16                 { NOTIFIER_ERR_INJECT_ACTION(OF_RECONFIG_REMOVE_PROPERTY) },
17                 { NOTIFIER_ERR_INJECT_ACTION(OF_RECONFIG_UPDATE_PROPERTY) },
18                 {}
19         }
20 };
21
22 static struct dentry *dir;
23
24 static int err_inject_init(void)
25 {
26         int err;
27
28         dir = notifier_err_inject_init("OF-reconfig",
29                 notifier_err_inject_dir, &reconfig_err_inject, priority);
30         if (IS_ERR(dir))
31                 return PTR_ERR(dir);
32
33         err = of_reconfig_notifier_register(&reconfig_err_inject.nb);
34         if (err)
35                 debugfs_remove_recursive(dir);
36
37         return err;
38 }
39
40 static void err_inject_exit(void)
41 {
42         of_reconfig_notifier_unregister(&reconfig_err_inject.nb);
43         debugfs_remove_recursive(dir);
44 }
45
46 module_init(err_inject_init);
47 module_exit(err_inject_exit);
48
49 MODULE_DESCRIPTION("OF reconfig notifier error injection module");
50 MODULE_LICENSE("GPL");
51 MODULE_AUTHOR("Akinobu Mita <akinobu.mita@gmail.com>");