79  * Widget tree sysfs
81  * This is a tree showing the attributes of each widget.  It appears like
322 	struct hdac_widget_tree *tree = codec->widgets;  in widget_tree_free()  local
325 	if (!tree)  in widget_tree_free()
327 	free_widget_node(tree->afg, &widget_afg_group);  in widget_tree_free()
328 	if (tree->nodes) {  in widget_tree_free()
329 		for (p = tree->nodes; *p; p++)  in widget_tree_free()
331 		kfree(tree->nodes);  in widget_tree_free()
333 	kobject_put(tree->root);  in widget_tree_free()
334 	kfree(tree);  in widget_tree_free()
365 	struct hdac_widget_tree *tree;  in widget_tree_create()  local
369 	tree = codec->widgets = kzalloc(sizeof(*tree), GFP_KERNEL);  in widget_tree_create()
370 	if (!tree)  in widget_tree_create()
373 	tree->root = kobject_create_and_add("widgets", &codec->dev.kobj);  in widget_tree_create()
374 	if (!tree->root)  in widget_tree_create()
377 	tree->nodes = kcalloc(codec->num_nodes + 1, sizeof(*tree->nodes),  in widget_tree_create()
379 	if (!tree->nodes)  in widget_tree_create()
383 		err = add_widget_node(tree->root, nid, &widget_node_group,  in widget_tree_create()
384 				      &tree->nodes[i]);  in widget_tree_create()
390 		err = add_widget_node(tree->root, codec->afg,  in widget_tree_create()
391 				      &widget_afg_group, &tree->afg);  in widget_tree_create()
396 	kobject_uevent(tree->root, KOBJ_CHANGE);  in widget_tree_create()
427 	struct hdac_widget_tree *tree;  in hda_widget_sysfs_reinit()  local
435 	tree = kmemdup(codec->widgets, sizeof(*tree), GFP_KERNEL);  in hda_widget_sysfs_reinit()
436 	if (!tree)  in hda_widget_sysfs_reinit()
439 	tree->nodes = kcalloc(num_nodes + 1, sizeof(*tree->nodes), GFP_KERNEL);  in hda_widget_sysfs_reinit()
440 	if (!tree->nodes) {  in hda_widget_sysfs_reinit()
441 		kfree(tree);  in hda_widget_sysfs_reinit()
455 			add_widget_node(tree->root, nid, &widget_node_group,  in hda_widget_sysfs_reinit()
456 					&tree->nodes[i]);  in hda_widget_sysfs_reinit()
458 			tree->nodes[i] =  in hda_widget_sysfs_reinit()
462 	/* replace with the new tree */  in hda_widget_sysfs_reinit()
465 	codec->widgets = tree;  in hda_widget_sysfs_reinit()
467 	kobject_uevent(tree->root, KOBJ_CHANGE);  in hda_widget_sysfs_reinit()