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kobject: add kobject_init_ng function

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This is what the kobject_init function is going to become.

Add this to the kernel and then we can convert the tree over to use it.

Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Greg Kroah-Hartman 2007-12-03 21:31:08 -08:00
parent 18041f4775
commit e86000d042
2 changed files with 43 additions and 0 deletions
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1
include/linux/kobject.h
View file

@ -79,6 +79,7 @@ static inline const char * kobject_name(const struct kobject * kobj)
}
extern void kobject_init(struct kobject *);
extern void kobject_init_ng(struct kobject *kobj, struct kobj_type *ktype);
extern int __must_check kobject_add(struct kobject *);
extern void kobject_del(struct kobject *);

42
lib/kobject.c
View file

@ -282,6 +282,48 @@ int kobject_set_name(struct kobject *kobj, const char *fmt, ...)
}
EXPORT_SYMBOL(kobject_set_name);
/**
* kobject_init_ng - initialize a kobject structure
* @kobj: pointer to the kobject to initialize
* @ktype: pointer to the ktype for this kobject.
*
* This function will properly initialize a kobject such that it can then
* be passed to the kobject_add() call.
*
* After this function is called, the kobject MUST be cleaned up by a call
* to kobject_put(), not by a call to kfree directly to ensure that all of
* the memory is cleaned up properly.
*/
void kobject_init_ng(struct kobject *kobj, struct kobj_type *ktype)
{
char *err_str;
if (!kobj) {
err_str = "invalid kobject pointer!";
goto error;
}
if (!ktype) {
err_str = "must have a ktype to be initialized properly!\n";
goto error;
}
if (atomic_read(&kobj->kref.refcount)) {
/* do not error out as sometimes we can recover */
printk(KERN_ERR "kobject: reference count is already set, "
"something is seriously wrong.\n");
dump_stack();
}
kref_init(&kobj->kref);
INIT_LIST_HEAD(&kobj->entry);
kobj->ktype = ktype;
return;
error:
printk(KERN_ERR "kobject: %s\n", err_str);
dump_stack();
}
EXPORT_SYMBOL(kobject_init_ng);
/**
* kobject_rename - change the name of an object
* @kobj: object in question.