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Subject[PATCH 047/196] kobject: get rid of kobject_kset_add_dir
Date
kobject_kset_add_dir is only called in one place so remove it and use
kobject_create() instead.

Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
drivers/base/core.c | 16 ++++++++++++++--
include/linux/kobject.h | 4 +---
lib/kobject.c | 37 +++++--------------------------------
3 files changed, 20 insertions(+), 37 deletions(-)

diff --git a/drivers/base/core.c b/drivers/base/core.c
index 992eba3..7762ee8 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -571,6 +571,8 @@ static struct kobject *virtual_device_parent(struct device *dev)
static struct kobject * get_device_parent(struct device *dev,
struct device *parent)
{
+ int retval;
+
if (dev->class) {
struct kobject *kobj = NULL;
struct kobject *parent_kobj;
@@ -600,8 +602,18 @@ static struct kobject * get_device_parent(struct device *dev,
return kobj;

/* or create a new class-directory at the parent device */
- return kobject_kset_add_dir(&dev->class->class_dirs,
- parent_kobj, dev->class->name);
+ k = kobject_create();
+ if (!k)
+ return NULL;
+ k->kset = &dev->class->class_dirs;
+ retval = kobject_add_ng(k, parent_kobj, "%s", dev->class->name);
+ if (retval < 0) {
+ kobject_put(k);
+ return NULL;
+ }
+ /* Do not emit a uevent, as it's not needed for this
+ * "class glue" directory. */
+ return k;
}

if (parent)
diff --git a/include/linux/kobject.h b/include/linux/kobject.h
index 7b09136..718b488 100644
--- a/include/linux/kobject.h
+++ b/include/linux/kobject.h
@@ -91,6 +91,7 @@ extern int __must_check kobject_init_and_add(struct kobject *kobj,

extern void kobject_del(struct kobject *);

+extern struct kobject * __must_check kobject_create(void);
extern struct kobject * __must_check kobject_create_and_add(const char *name,
struct kobject *parent);

@@ -103,9 +104,6 @@ extern void kobject_unregister(struct kobject *);
extern struct kobject * kobject_get(struct kobject *);
extern void kobject_put(struct kobject *);

-extern struct kobject *kobject_kset_add_dir(struct kset *kset,
- struct kobject *, const char *);
-
extern char * kobject_get_path(struct kobject *, gfp_t);

struct kobj_type {
diff --git a/lib/kobject.c b/lib/kobject.c
index 96b61d9..67c3d38 100644
--- a/lib/kobject.c
+++ b/lib/kobject.c
@@ -629,15 +629,18 @@ static struct kobj_type dynamic_kobj_ktype = {
.release = dynamic_kobj_release,
};

-/*
+/**
* kobject_create - create a struct kobject dynamically
*
* This function creates a kobject structure dynamically and sets it up
* to be a "dynamic" kobject with a default release function set up.
*
* If the kobject was not able to be created, NULL will be returned.
+ * The kobject structure returned from here must be cleaned up with a
+ * call to kobject_put() and not kfree(), as kobject_init_ng() has
+ * already been called on this structure.
*/
-static struct kobject *kobject_create(void)
+struct kobject *kobject_create(void)
{
struct kobject *kobj;

@@ -683,36 +686,6 @@ struct kobject *kobject_create_and_add(const char *name, struct kobject *parent)
EXPORT_SYMBOL_GPL(kobject_create_and_add);

/**
- * kobject_kset_add_dir - add sub directory of object.
- * @kset: kset the directory is belongs to.
- * @parent: object in which a directory is created.
- * @name: directory name.
- *
- * Add a plain directory object as child of given object.
- */
-struct kobject *kobject_kset_add_dir(struct kset *kset,
- struct kobject *parent, const char *name)
-{
- struct kobject *k;
- int ret;
-
- k = kobject_create();
- if (!k)
- return NULL;
-
- k->kset = kset;
- ret = kobject_add_ng(k, parent, "%s", name);
- if (ret < 0) {
- printk(KERN_WARNING "%s: kobject_add error: %d\n",
- __func__, ret);
- kobject_put(k);
- k = NULL;
- }
-
- return k;
-}
-
-/**
* kset_init - initialize a kset for use
* @k: kset
*/
--
1.5.3.8


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