70 	struct snd_info_entry *entry;  member
75 static void snd_info_disconnect(struct snd_info_entry *entry);
89 static int alloc_info_private(struct snd_info_entry *entry,  in alloc_info_private()  argument
94 	if (!entry || !entry->p)  in alloc_info_private()
96 	if (!try_module_get(entry->module))  in alloc_info_private()
100 		module_put(entry->module);  in alloc_info_private()
103 	data->entry = entry;  in alloc_info_private()
123 	struct snd_info_entry *entry;  in snd_info_entry_llseek()  local
127 	entry = data->entry;  in snd_info_entry_llseek()
128 	mutex_lock(&entry->access);  in snd_info_entry_llseek()
129 	if (entry->c.ops->llseek) {  in snd_info_entry_llseek()
130 		offset = entry->c.ops->llseek(entry,  in snd_info_entry_llseek()
136 	size = entry->size;  in snd_info_entry_llseek()
158 	mutex_unlock(&entry->access);  in snd_info_entry_llseek()
166 	struct snd_info_entry *entry = data->entry;  in snd_info_entry_read()  local
173 	if (pos >= entry->size)  in snd_info_entry_read()
175 	size = entry->size - pos;  in snd_info_entry_read()
177 	size = entry->c.ops->read(entry, data->file_private_data,  in snd_info_entry_read()
188 	struct snd_info_entry *entry = data->entry;  in snd_info_entry_write()  local
196 		size_t maxsize = entry->size - pos;  in snd_info_entry_write()
198 		size = entry->c.ops->write(entry, data->file_private_data,  in snd_info_entry_write()
209 	struct snd_info_entry *entry = data->entry;  in snd_info_entry_poll()  local
212 	if (entry->c.ops->poll)  in snd_info_entry_poll()
213 		return entry->c.ops->poll(entry,  in snd_info_entry_poll()
216 	if (entry->c.ops->read)  in snd_info_entry_poll()
218 	if (entry->c.ops->write)  in snd_info_entry_poll()
227 	struct snd_info_entry *entry = data->entry;  in snd_info_entry_ioctl()  local
229 	if (!entry->c.ops->ioctl)  in snd_info_entry_ioctl()
231 	return entry->c.ops->ioctl(entry, data->file_private_data,  in snd_info_entry_ioctl()
239 	struct snd_info_entry *entry;  in snd_info_entry_mmap()  local
244 	entry = data->entry;  in snd_info_entry_mmap()
245 	if (!entry->c.ops->mmap)  in snd_info_entry_mmap()
247 	return entry->c.ops->mmap(entry, data->file_private_data,  in snd_info_entry_mmap()
253 	struct snd_info_entry *entry = PDE_DATA(inode);  in snd_info_entry_open()  local
258 	err = alloc_info_private(entry, &data);  in snd_info_entry_open()
263 	if (((mode == O_RDONLY || mode == O_RDWR) && !entry->c.ops->read) ||  in snd_info_entry_open()
264 	    ((mode == O_WRONLY || mode == O_RDWR) && !entry->c.ops->write)) {  in snd_info_entry_open()
269 	if (entry->c.ops->open) {  in snd_info_entry_open()
270 		err = entry->c.ops->open(entry, mode, &data->file_private_data);  in snd_info_entry_open()
281 	module_put(entry->module);  in snd_info_entry_open()
290 	struct snd_info_entry *entry = data->entry;  in snd_info_entry_release()  local
292 	if (entry->c.ops->release)  in snd_info_entry_release()
293 		entry->c.ops->release(entry, file->f_flags & O_ACCMODE,  in snd_info_entry_release()
295 	module_put(entry->module);  in snd_info_entry_release()
322 	struct snd_info_entry *entry = data->entry;  in snd_info_text_entry_write()  local
328 	if (!entry->c.text.write)  in snd_info_text_entry_write()
337 	mutex_lock(&entry->access);  in snd_info_text_entry_write()
362 	mutex_unlock(&entry->access);  in snd_info_text_entry_write()
372 	struct snd_info_entry *entry = data->entry;  in snd_info_seq_show()  local
374 	if (!entry->c.text.read) {  in snd_info_seq_show()
378 		entry->c.text.read(entry, data->rbuffer);  in snd_info_seq_show()
385 	struct snd_info_entry *entry = PDE_DATA(inode);  in snd_info_text_entry_open()  local
390 	err = alloc_info_private(entry, &data);  in snd_info_text_entry_open()
399 	if (entry->size)  in snd_info_text_entry_open()
401 				       entry->size);  in snd_info_text_entry_open()
412 	module_put(entry->module);  in snd_info_text_entry_open()
422 	struct snd_info_entry *entry = data->entry;  in snd_info_text_entry_release()  local
424 	if (data->wbuffer && entry->c.text.write)  in snd_info_text_entry_release()
425 		entry->c.text.write(entry, data->wbuffer);  in snd_info_text_entry_release()
434 	module_put(entry->module);  in snd_info_text_entry_release()
452 	struct snd_info_entry *entry;  in create_subdir()  local
454 	entry = snd_info_create_module_entry(mod, name, NULL);  in create_subdir()
455 	if (!entry)  in create_subdir()
457 	entry->mode = S_IFDIR | 0555;  in create_subdir()
458 	if (snd_info_register(entry) < 0) {  in create_subdir()
459 		snd_info_free_entry(entry);  in create_subdir()
462 	return entry;  in create_subdir()
513 	struct snd_info_entry *entry;  in snd_info_card_create()  local
519 	entry = create_subdir(card->module, str);  in snd_info_card_create()
520 	if (!entry)  in snd_info_card_create()
522 	card->proc_root = entry;  in snd_info_card_create()
527 static int snd_info_register_recursive(struct snd_info_entry *entry)  in snd_info_register_recursive()  argument
532 	if (!entry->p) {  in snd_info_register_recursive()
533 		err = snd_info_register(entry);  in snd_info_register_recursive()
538 	list_for_each_entry(p, &entry->children, list) {  in snd_info_register_recursive()
710 	struct snd_info_entry *entry;  in snd_info_create_entry()  local
711 	entry = kzalloc(sizeof(*entry), GFP_KERNEL);  in snd_info_create_entry()
712 	if (entry == NULL)  in snd_info_create_entry()
714 	entry->name = kstrdup(name, GFP_KERNEL);  in snd_info_create_entry()
715 	if (entry->name == NULL) {  in snd_info_create_entry()
716 		kfree(entry);  in snd_info_create_entry()
719 	entry->mode = S_IFREG | 0444;  in snd_info_create_entry()
720 	entry->content = SNDRV_INFO_CONTENT_TEXT;  in snd_info_create_entry()
721 	mutex_init(&entry->access);  in snd_info_create_entry()
722 	INIT_LIST_HEAD(&entry->children);  in snd_info_create_entry()
723 	INIT_LIST_HEAD(&entry->list);  in snd_info_create_entry()
724 	entry->parent = parent;  in snd_info_create_entry()
726 		list_add_tail(&entry->list, &parent->children);  in snd_info_create_entry()
727 	return entry;  in snd_info_create_entry()
744 	struct snd_info_entry *entry = snd_info_create_entry(name, parent);  in snd_info_create_module_entry()  local
745 	if (entry)  in snd_info_create_module_entry()
746 		entry->module = module;  in snd_info_create_module_entry()
747 	return entry;  in snd_info_create_module_entry()
765 	struct snd_info_entry *entry = snd_info_create_entry(name, parent);  in snd_info_create_card_entry()  local
766 	if (entry) {  in snd_info_create_card_entry()
767 		entry->module = card->module;  in snd_info_create_card_entry()
768 		entry->card = card;  in snd_info_create_card_entry()
770 	return entry;  in snd_info_create_card_entry()
774 static void snd_info_disconnect(struct snd_info_entry *entry)  in snd_info_disconnect()  argument
778 	if (!entry->p)  in snd_info_disconnect()
780 	list_for_each_entry(p, &entry->children, list)  in snd_info_disconnect()
782 	proc_remove(entry->p);  in snd_info_disconnect()
783 	entry->p = NULL;  in snd_info_disconnect()
792 void snd_info_free_entry(struct snd_info_entry * entry)  in snd_info_free_entry()  argument
796 	if (!entry)  in snd_info_free_entry()
798 	if (entry->p) {  in snd_info_free_entry()
800 		snd_info_disconnect(entry);  in snd_info_free_entry()
805 	list_for_each_entry_safe(p, n, &entry->children, list)  in snd_info_free_entry()
808 	list_del(&entry->list);  in snd_info_free_entry()
809 	kfree(entry->name);  in snd_info_free_entry()
810 	if (entry->private_free)  in snd_info_free_entry()
811 		entry->private_free(entry);  in snd_info_free_entry()
812 	kfree(entry);  in snd_info_free_entry()
824 int snd_info_register(struct snd_info_entry * entry)  in snd_info_register()  argument
828 	if (snd_BUG_ON(!entry))  in snd_info_register()
830 	root = entry->parent == NULL ? snd_proc_root->p : entry->parent->p;  in snd_info_register()
832 	if (S_ISDIR(entry->mode)) {  in snd_info_register()
833 		p = proc_mkdir_mode(entry->name, entry->mode, root);  in snd_info_register()
840 		if (entry->content == SNDRV_INFO_CONTENT_DATA)  in snd_info_register()
844 		p = proc_create_data(entry->name, entry->mode, root,  in snd_info_register()
845 				     ops, entry);  in snd_info_register()
850 		proc_set_size(p, entry->size);  in snd_info_register()
852 	entry->p = p;  in snd_info_register()
862 static void snd_info_version_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer)  in snd_info_version_read()  argument
871 	struct snd_info_entry *entry;  in snd_info_version_init()  local
873 	entry = snd_info_create_module_entry(THIS_MODULE, "version", NULL);  in snd_info_version_init()
874 	if (entry == NULL)  in snd_info_version_init()
876 	entry->c.text.read = snd_info_version_read;  in snd_info_version_init()
877 	return snd_info_register(entry); /* freed in error path */  in snd_info_version_init()