1// SPDX-License-Identifier: GPL-2.0-only
 2#include <linux/kernel.h>
 3#include <linux/module.h>
 4#include <linux/of.h>
 5
 6#include "notifier-error-inject.h"
 7
 8static int priority;
 9module_param(priority, int, 0);
10MODULE_PARM_DESC(priority, "specify OF reconfig notifier priority");
11
12static struct notifier_err_inject reconfig_err_inject = {
13	.actions = {
14		{ NOTIFIER_ERR_INJECT_ACTION(OF_RECONFIG_ATTACH_NODE) },
15		{ NOTIFIER_ERR_INJECT_ACTION(OF_RECONFIG_DETACH_NODE) },
16		{ NOTIFIER_ERR_INJECT_ACTION(OF_RECONFIG_ADD_PROPERTY) },
17		{ NOTIFIER_ERR_INJECT_ACTION(OF_RECONFIG_REMOVE_PROPERTY) },
18		{ NOTIFIER_ERR_INJECT_ACTION(OF_RECONFIG_UPDATE_PROPERTY) },
19		{}
20	}
21};
22
23static struct dentry *dir;
24
25static int err_inject_init(void)
26{
27	int err;
28
29	dir = notifier_err_inject_init("OF-reconfig",
30		notifier_err_inject_dir, &reconfig_err_inject, priority);
31	if (IS_ERR(dir))
32		return PTR_ERR(dir);
33
34	err = of_reconfig_notifier_register(&reconfig_err_inject.nb);
35	if (err)
36		debugfs_remove_recursive(dir);
37
38	return err;
39}
40
41static void err_inject_exit(void)
42{
43	of_reconfig_notifier_unregister(&reconfig_err_inject.nb);
44	debugfs_remove_recursive(dir);
45}
46
47module_init(err_inject_init);
48module_exit(err_inject_exit);
49
50MODULE_DESCRIPTION("OF reconfig notifier error injection module");
51MODULE_LICENSE("GPL");
52MODULE_AUTHOR("Akinobu Mita <akinobu.mita@gmail.com>");

 
 1#include <linux/kernel.h>
 2#include <linux/module.h>
 3#include <linux/of.h>
 4
 5#include "notifier-error-inject.h"
 6
 7static int priority;
 8module_param(priority, int, 0);
 9MODULE_PARM_DESC(priority, "specify OF reconfig notifier priority");
10
11static 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
22static struct dentry *dir;
23
24static 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
40static void err_inject_exit(void)
41{
42	of_reconfig_notifier_unregister(&reconfig_err_inject.nb);
43	debugfs_remove_recursive(dir);
44}
45
46module_init(err_inject_init);
47module_exit(err_inject_exit);
48
49MODULE_DESCRIPTION("OF reconfig notifier error injection module");
50MODULE_LICENSE("GPL");
51MODULE_AUTHOR("Akinobu Mita <akinobu.mita@gmail.com>");