[PATCH 041/196] kobject: add kobject_init_and_add function

Greg Kroah-Hartman
2008-01-25T07:28:35Z

Also add a kobject_init_and_add function which bundles up what a lot of
the current callers want to do all at once, and it properly handles the
memory usages, unlike kobject_register();

Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
include/linux/kobject.h | 5 +++++
lib/kobject.c | 27 +++++++++++++++++++++++++++
2 files changed, 32 insertions(+), 0 deletions(-)

diff --git a/include/linux/kobject.h b/include/linux/kobject.h
index 57eea4c..e2b8c3d 100644
--- a/include/linux/kobject.h
+++ b/include/linux/kobject.h
@@ -84,6 +84,11 @@ extern int __must_check kobject_add(struct kobject *);
extern int __must_check kobject_add_ng(struct kobject *kobj,
struct kobject *parent,
const char *fmt, ...);
+extern int __must_check kobject_init_and_add(struct kobject *kobj,
+ struct kobj_type *ktype,
+ struct kobject *parent,
+ const char *fmt, ...);
+
extern void kobject_del(struct kobject *);

extern int __must_check kobject_rename(struct kobject *, const char *new_name);
diff --git a/lib/kobject.c b/lib/kobject.c
index 329fd11..8f24940 100644
--- a/lib/kobject.c
+++ b/lib/kobject.c
@@ -391,6 +391,33 @@ int kobject_add_ng(struct kobject *kobj, struct kobject *parent,
EXPORT_SYMBOL(kobject_add_ng);

/**
+ * kobject_init_and_add - initialize a kobject structure and add it to the kobject hierarchy
+ * @kobj: pointer to the kobject to initialize
+ * @ktype: pointer to the ktype for this kobject.
+ * @parent: pointer to the parent of this kobject.
+ * @fmt: the name of the kobject.
+ *
+ * This function combines the call to kobject_init_ng() and
+ * kobject_add_ng(). The same type of error handling after a call to
+ * kobject_add_ng() and kobject lifetime rules are the same here.
+ */
+int kobject_init_and_add(struct kobject *kobj, struct kobj_type *ktype,
+ struct kobject *parent, const char *fmt, ...)
+{
+ va_list args;
+ int retval;
+
+ kobject_init_ng(kobj, ktype);
+
+ va_start(args, fmt);
+ retval = kobject_add_varg(kobj, parent, fmt, args);
+ va_end(args);
+
+ return retval;
+}
+EXPORT_SYMBOL_GPL(kobject_init_and_add);
+
+/**
* kobject_rename - change the name of an object
* @kobj: object in question.
* @new_name: object's new name
--
1.5.3.8