Doug / smarc-fsl-linux-kernel

Download as
Browse Code ยป

Commit 7423172a50968de1905a61413c52bb070a62f5ce

Authored by Jun'ichi Nomura
Committed by Greg Kroah-Hartman
1 parent dd308bc355
Exists in master and in 7 other branches imx_3.0.35_4.1.0, imx_3.10.17_1.0.1_ga, imx_3.10.53_1.1.0_ga, imx_3.14.28_1.0.0_ga, smarc-imx_3.10.53_1.1.0_ga, smarc-imx_3.14.28_1.0.0_ga, smarc-l5.0.0_1.0.0-ga

[PATCH] kobject_add_dir 

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

Signed-off-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

Showing 2 changed files with 40 additions and 0 deletions Side-by-side Diff

include/linux/kobject.h
Diff comments   View file @ 7423172
... ... @@ -80,6 +80,8 @@
80 80 extern struct kobject * kobject_get(struct kobject *);
81 81 extern void kobject_put(struct kobject *);
82 82  
  83 +extern struct kobject *kobject_add_dir(struct kobject *, const char *);
  84 +
83 85 extern char * kobject_get_path(struct kobject *, gfp_t);
84 86  
85 87 struct kobj_type {
... ... @@ -385,6 +385,44 @@
385 385 }
386 386  
387 387  
  388 +static void dir_release(struct kobject *kobj)
  389 +{
  390 + kfree(kobj);
  391 +}
  392 +
  393 +static struct kobj_type dir_ktype = {
  394 + .release = dir_release,
  395 + .sysfs_ops = NULL,
  396 + .default_attrs = NULL,
  397 +};
  398 +
  399 +/**
  400 + * kobject_add_dir - add sub directory of object.
  401 + * @parent: object in which a directory is created.
  402 + * @name: directory name.
  403 + *
  404 + * Add a plain directory object as child of given object.
  405 + */
  406 +struct kobject *kobject_add_dir(struct kobject *parent, const char *name)
  407 +{
  408 + struct kobject *k;
  409 +
  410 + if (!parent)
  411 + return NULL;
  412 +
  413 + k = kzalloc(sizeof(*k), GFP_KERNEL);
  414 + if (!k)
  415 + return NULL;
  416 +
  417 + k->parent = parent;
  418 + k->ktype = &dir_ktype;
  419 + kobject_set_name(k, name);
  420 + kobject_register(k);
  421 +
  422 + return k;
  423 +}
  424 +EXPORT_SYMBOL_GPL(kobject_add_dir);
  425 +
388 426 /**
389 427 * kset_init - initialize a kset for use
390 428 * @k: kset