102 int class_create_file(struct class *cls, const struct class_attribute *attr)  in class_create_file()  argument
105 	if (cls)  in class_create_file()
106 		error = sysfs_create_file(&cls->p->subsys.kobj,  in class_create_file()
113 void class_remove_file(struct class *cls, const struct class_attribute *attr)  in class_remove_file()  argument
115 	if (cls)  in class_remove_file()
116 		sysfs_remove_file(&cls->p->subsys.kobj, &attr->attr);  in class_remove_file()
119 static struct class *class_get(struct class *cls)  in class_get()  argument
121 	if (cls)  in class_get()
122 		kset_get(&cls->p->subsys);  in class_get()
123 	return cls;  in class_get()
126 static void class_put(struct class *cls)  in class_put()  argument
128 	if (cls)  in class_put()
129 		kset_put(&cls->p->subsys);  in class_put()
132 static int add_class_attrs(struct class *cls)  in add_class_attrs()  argument
137 	if (cls->class_attrs) {  in add_class_attrs()
138 		for (i = 0; attr_name(cls->class_attrs[i]); i++) {  in add_class_attrs()
139 			error = class_create_file(cls, &cls->class_attrs[i]);  in add_class_attrs()
148 		class_remove_file(cls, &cls->class_attrs[i]);  in add_class_attrs()
152 static void remove_class_attrs(struct class *cls)  in remove_class_attrs()  argument
156 	if (cls->class_attrs) {  in remove_class_attrs()
157 		for (i = 0; attr_name(cls->class_attrs[i]); i++)  in remove_class_attrs()
158 			class_remove_file(cls, &cls->class_attrs[i]);  in remove_class_attrs()
176 int __class_register(struct class *cls, struct lock_class_key *key)  in __class_register()  argument
181 	pr_debug("device class '%s': registering\n", cls->name);  in __class_register()
190 	error = kobject_set_name(&cp->subsys.kobj, "%s", cls->name);  in __class_register()
197 	if (!cls->dev_kobj)  in __class_register()
198 		cls->dev_kobj = sysfs_dev_char_kobj;  in __class_register()
202 	if (!sysfs_deprecated || cls != &block_class)  in __class_register()
208 	cp->class = cls;  in __class_register()
209 	cls->p = cp;  in __class_register()
216 	error = add_class_attrs(class_get(cls));  in __class_register()
217 	class_put(cls);  in __class_register()
222 void class_unregister(struct class *cls)  in class_unregister()  argument
224 	pr_debug("device class '%s': unregistering\n", cls->name);  in class_unregister()
225 	remove_class_attrs(cls);  in class_unregister()
226 	kset_unregister(&cls->p->subsys);  in class_unregister()
229 static void class_create_release(struct class *cls)  in class_create_release()  argument
231 	pr_debug("%s called for %s\n", __func__, cls->name);  in class_create_release()
232 	kfree(cls);  in class_create_release()
252 	struct class *cls;  in __class_create()  local
255 	cls = kzalloc(sizeof(*cls), GFP_KERNEL);  in __class_create()
256 	if (!cls) {  in __class_create()
261 	cls->name = name;  in __class_create()
262 	cls->owner = owner;  in __class_create()
263 	cls->class_release = class_create_release;  in __class_create()
265 	retval = __class_register(cls, key);  in __class_create()
269 	return cls;  in __class_create()
272 	kfree(cls);  in __class_create()
284 void class_destroy(struct class *cls)  in class_destroy()  argument
286 	if ((cls == NULL) || (IS_ERR(cls)))  in class_destroy()
289 	class_unregister(cls);  in class_destroy()
521 	struct class_compat *cls;  in class_compat_register()  local
523 	cls = kmalloc(sizeof(struct class_compat), GFP_KERNEL);  in class_compat_register()
524 	if (!cls)  in class_compat_register()
526 	cls->kobj = kobject_create_and_add(name, &class_kset->kobj);  in class_compat_register()
527 	if (!cls->kobj) {  in class_compat_register()
528 		kfree(cls);  in class_compat_register()
531 	return cls;  in class_compat_register()
539 void class_compat_unregister(struct class_compat *cls)  in class_compat_unregister()  argument
541 	kobject_put(cls->kobj);  in class_compat_unregister()
542 	kfree(cls);  in class_compat_unregister()
553 int class_compat_create_link(struct class_compat *cls, struct device *dev,  in class_compat_create_link()  argument
558 	error = sysfs_create_link(cls->kobj, &dev->kobj, dev_name(dev));  in class_compat_create_link()
571 			sysfs_remove_link(cls->kobj, dev_name(dev));  in class_compat_create_link()
586 void class_compat_remove_link(struct class_compat *cls, struct device *dev,  in class_compat_remove_link()  argument
591 	sysfs_remove_link(cls->kobj, dev_name(dev));  in class_compat_remove_link()