Commit 7423172a authored by Jun'ichi Nomura's avatar Jun'ichi Nomura Committed by Greg Kroah-Hartman
Browse files

[PATCH] kobject_add_dir 



Adding kobject_add_dir() function which creates a subdirectory
for a given kobject.

Signed-off-by: default avatarJun'ichi Nomura <j-nomura@ce.jp.nec.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent dd308bc3

include/linux/kobject.h

+2 −0
Original line number Diff line number Diff line
@@ -80,6 +80,8 @@ extern void kobject_unregister(struct kobject *); 
extern struct kobject * kobject_get(struct kobject *);

extern void kobject_put(struct kobject *);



extern struct kobject *kobject_add_dir(struct kobject *, const char *);



extern char * kobject_get_path(struct kobject *, gfp_t);



struct kobj_type {

lib/kobject.c

+38 −0
Original line number Diff line number Diff line
@@ -385,6 +385,44 @@ void kobject_put(struct kobject * kobj) 
}





static void dir_release(struct kobject *kobj)

{

	kfree(kobj);

}



static struct kobj_type dir_ktype = {

	.release	= dir_release,

	.sysfs_ops	= NULL,

	.default_attrs	= NULL,

};



/**

 *	kobject_add_dir - add sub directory of object.

 *	@parent:	object in which a directory is created.

 *	@name:	directory name.

 *

 *	Add a plain directory object as child of given object.

 */

struct kobject *kobject_add_dir(struct kobject *parent, const char *name)

{

	struct kobject *k;



	if (!parent)

		return NULL;



	k = kzalloc(sizeof(*k), GFP_KERNEL);

	if (!k)

		return NULL;



	k->parent = parent;

	k->ktype = &dir_ktype;

	kobject_set_name(k, name);

	kobject_register(k);



	return k;

}

EXPORT_SYMBOL_GPL(kobject_add_dir);



/**

 *	kset_init - initialize a kset for use

 *	@k:	kset