54 	struct snd_info_entry *entry;  member
59 static void snd_info_clear_entries(struct snd_info_entry *entry);
73 static int alloc_info_private(struct snd_info_entry *entry,  in alloc_info_private()  argument
78 	if (!entry || !entry->p)  in alloc_info_private()
80 	if (!try_module_get(entry->module))  in alloc_info_private()
84 		module_put(entry->module);  in alloc_info_private()
87 	data->entry = entry;  in alloc_info_private()
107 	struct snd_info_entry *entry;  in snd_info_entry_llseek()  local
111 	entry = data->entry;  in snd_info_entry_llseek()
112 	mutex_lock(&entry->access);  in snd_info_entry_llseek()
113 	if (entry->c.ops->llseek) {  in snd_info_entry_llseek()
114 		ret = entry->c.ops->llseek(entry,  in snd_info_entry_llseek()
120 	size = entry->size;  in snd_info_entry_llseek()
142 	mutex_unlock(&entry->access);  in snd_info_entry_llseek()
150 	struct snd_info_entry *entry = data->entry;  in snd_info_entry_read()  local
157 	if (pos >= entry->size)  in snd_info_entry_read()
159 	size = entry->size - pos;  in snd_info_entry_read()
161 	size = entry->c.ops->read(entry, data->file_private_data,  in snd_info_entry_read()
172 	struct snd_info_entry *entry = data->entry;  in snd_info_entry_write()  local
180 		size_t maxsize = entry->size - pos;  in snd_info_entry_write()
182 		size = entry->c.ops->write(entry, data->file_private_data,  in snd_info_entry_write()
193 	struct snd_info_entry *entry = data->entry;  in snd_info_entry_poll()  local
196 	if (entry->c.ops->poll)  in snd_info_entry_poll()
197 		return entry->c.ops->poll(entry,  in snd_info_entry_poll()
200 	if (entry->c.ops->read)  in snd_info_entry_poll()
202 	if (entry->c.ops->write)  in snd_info_entry_poll()
211 	struct snd_info_entry *entry = data->entry;  in snd_info_entry_ioctl()  local
213 	if (!entry->c.ops->ioctl)  in snd_info_entry_ioctl()
215 	return entry->c.ops->ioctl(entry, data->file_private_data,  in snd_info_entry_ioctl()
223 	struct snd_info_entry *entry;  in snd_info_entry_mmap()  local
228 	entry = data->entry;  in snd_info_entry_mmap()
229 	if (!entry->c.ops->mmap)  in snd_info_entry_mmap()
231 	return entry->c.ops->mmap(entry, data->file_private_data,  in snd_info_entry_mmap()
237 	struct snd_info_entry *entry = pde_data(inode);  in snd_info_entry_open()  local
242 	err = alloc_info_private(entry, &data);  in snd_info_entry_open()
247 	if (((mode == O_RDONLY || mode == O_RDWR) && !entry->c.ops->read) ||  in snd_info_entry_open()
248 	    ((mode == O_WRONLY || mode == O_RDWR) && !entry->c.ops->write)) {  in snd_info_entry_open()
253 	if (entry->c.ops->open) {  in snd_info_entry_open()
254 		err = entry->c.ops->open(entry, mode, &data->file_private_data);  in snd_info_entry_open()
265 	module_put(entry->module);  in snd_info_entry_open()
274 	struct snd_info_entry *entry = data->entry;  in snd_info_entry_release()  local
276 	if (entry->c.ops->release)  in snd_info_entry_release()
277 		entry->c.ops->release(entry, file->f_flags & O_ACCMODE,  in snd_info_entry_release()
279 	module_put(entry->module);  in snd_info_entry_release()
305 	struct snd_info_entry *entry = data->entry;  in snd_info_text_entry_write()  local
311 	if (!entry->c.text.write)  in snd_info_text_entry_write()
320 	mutex_lock(&entry->access);  in snd_info_text_entry_write()
345 	mutex_unlock(&entry->access);  in snd_info_text_entry_write()
355 	struct snd_info_entry *entry = data->entry;  in snd_info_seq_show()  local
357 	if (!entry->c.text.read) {  in snd_info_seq_show()
361 		entry->c.text.read(entry, data->rbuffer);  in snd_info_seq_show()
368 	struct snd_info_entry *entry = pde_data(inode);  in snd_info_text_entry_open()  local
373 	err = alloc_info_private(entry, &data);  in snd_info_text_entry_open()
382 	if (entry->size)  in snd_info_text_entry_open()
384 				       entry->size);  in snd_info_text_entry_open()
395 	module_put(entry->module);  in snd_info_text_entry_open()
405 	struct snd_info_entry *entry = data->entry;  in snd_info_text_entry_release()  local
407 	if (data->wbuffer && entry->c.text.write)  in snd_info_text_entry_release()
408 		entry->c.text.write(entry, data->wbuffer);  in snd_info_text_entry_release()
417 	module_put(entry->module);  in snd_info_text_entry_release()
434 	struct snd_info_entry *entry;  in create_subdir()  local
436 	entry = snd_info_create_module_entry(mod, name, NULL);  in create_subdir()
437 	if (!entry)  in create_subdir()
439 	entry->mode = S_IFDIR | 0555;  in create_subdir()
440 	if (snd_info_register(entry) < 0) {  in create_subdir()
441 		snd_info_free_entry(entry);  in create_subdir()
444 	return entry;  in create_subdir()
489 static void snd_card_id_read(struct snd_info_entry *entry,  in snd_card_id_read()  argument
492 	struct snd_card *card = entry->private_data;  in snd_card_id_read()
504 	struct snd_info_entry *entry;  in snd_info_card_create()  local
510 	entry = create_subdir(card->module, str);  in snd_info_card_create()
511 	if (!entry)  in snd_info_card_create()
513 	card->proc_root = entry;  in snd_info_card_create()
689 	struct snd_info_entry *entry;  in snd_info_create_entry()  local
690 	entry = kzalloc(sizeof(*entry), GFP_KERNEL);  in snd_info_create_entry()
691 	if (entry == NULL)  in snd_info_create_entry()
693 	entry->name = kstrdup(name, GFP_KERNEL);  in snd_info_create_entry()
694 	if (entry->name == NULL) {  in snd_info_create_entry()
695 		kfree(entry);  in snd_info_create_entry()
698 	entry->mode = S_IFREG | 0444;  in snd_info_create_entry()
699 	entry->content = SNDRV_INFO_CONTENT_TEXT;  in snd_info_create_entry()
700 	mutex_init(&entry->access);  in snd_info_create_entry()
701 	INIT_LIST_HEAD(&entry->children);  in snd_info_create_entry()
702 	INIT_LIST_HEAD(&entry->list);  in snd_info_create_entry()
703 	entry->parent = parent;  in snd_info_create_entry()
704 	entry->module = module;  in snd_info_create_entry()
707 		list_add_tail(&entry->list, &parent->children);  in snd_info_create_entry()
710 	return entry;  in snd_info_create_entry()
753 static void snd_info_clear_entries(struct snd_info_entry *entry)  in snd_info_clear_entries()  argument
757 	if (!entry->p)  in snd_info_clear_entries()
759 	list_for_each_entry(p, &entry->children, list)  in snd_info_clear_entries()
761 	entry->p = NULL;  in snd_info_clear_entries()
770 void snd_info_free_entry(struct snd_info_entry * entry)  in snd_info_free_entry()  argument
774 	if (!entry)  in snd_info_free_entry()
776 	if (entry->p) {  in snd_info_free_entry()
777 		proc_remove(entry->p);  in snd_info_free_entry()
779 		snd_info_clear_entries(entry);  in snd_info_free_entry()
784 	list_for_each_entry_safe(p, n, &entry->children, list)  in snd_info_free_entry()
787 	p = entry->parent;  in snd_info_free_entry()
790 		list_del(&entry->list);  in snd_info_free_entry()
793 	kfree(entry->name);  in snd_info_free_entry()
794 	if (entry->private_free)  in snd_info_free_entry()
795 		entry->private_free(entry);  in snd_info_free_entry()
796 	kfree(entry);  in snd_info_free_entry()
800 static int __snd_info_register(struct snd_info_entry *entry)  in __snd_info_register()  argument
804 	if (snd_BUG_ON(!entry))  in __snd_info_register()
806 	root = entry->parent == NULL ? snd_proc_root->p : entry->parent->p;  in __snd_info_register()
808 	if (entry->p || !root)  in __snd_info_register()
810 	if (S_ISDIR(entry->mode)) {  in __snd_info_register()
811 		p = proc_mkdir_mode(entry->name, entry->mode, root);  in __snd_info_register()
818 		if (entry->content == SNDRV_INFO_CONTENT_DATA)  in __snd_info_register()
822 		p = proc_create_data(entry->name, entry->mode, root,  in __snd_info_register()
823 				     ops, entry);  in __snd_info_register()
828 		proc_set_size(p, entry->size);  in __snd_info_register()
830 	entry->p = p;  in __snd_info_register()
845 int snd_info_register(struct snd_info_entry *entry)  in snd_info_register()  argument
850 	if (!entry->p) {  in snd_info_register()
851 		err = __snd_info_register(entry);  in snd_info_register()
856 	list_for_each_entry(p, &entry->children, list) {  in snd_info_register()
883 			 void (*write)(struct snd_info_entry *entry,  in snd_card_rw_proc_new()  argument
886 	struct snd_info_entry *entry;  in snd_card_rw_proc_new()  local
888 	entry = snd_info_create_card_entry(card, name, card->proc_root);  in snd_card_rw_proc_new()
889 	if (!entry)  in snd_card_rw_proc_new()
891 	snd_info_set_text_ops(entry, private_data, read);  in snd_card_rw_proc_new()
893 		entry->mode |= 0200;  in snd_card_rw_proc_new()
894 		entry->c.text.write = write;  in snd_card_rw_proc_new()
904 static void snd_info_version_read(struct snd_info_entry *entry, struct snd_info_buffer *buffer)  in snd_info_version_read()  argument
913 	struct snd_info_entry *entry;  in snd_info_version_init()  local
915 	entry = snd_info_create_module_entry(THIS_MODULE, "version", NULL);  in snd_info_version_init()
916 	if (entry == NULL)  in snd_info_version_init()
918 	entry->c.text.read = snd_info_version_read;  in snd_info_version_init()
919 	return snd_info_register(entry); /* freed in error path */  in snd_info_version_init()