Re: [RFC] kobject: add kobject_init_ng, kobject_add_ng, and kobject_init_and_add functions

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On Mon, 3 Dec 2007, Greg KH wrote:

> > Did you want to add an extra kobject_put() to the end of kobject_del()?  
> > Or did you want to define a new kobject_destroy() that combines calls 
> > to kobject_del() and kobject_put()?
> 
> No, let's keep what we have there on the cleanup path for now.  I have
> enough work to clean up the initializion part of the api for now :)

> +/**
> + * kobject_add_ng - the main kobject add function
> + * @kobj: the kobject to add
> + * @parent: pointer to the parent of the kobject.
> + * @fmt: format to name the kobject with.
> + *
> + * The kobject name is set and added to the kobject hierarchy in this
> + * function.
> + *
> + * If @parent is set, then the parent of the @kobj will be set to it.
> + * If @parent is NULL, then the parent of the @kobj will be set to the
> + * kobject associted with the kset assigned to this kobject.  If no kset
> + * is assigned to the kobject, then the kobject will be located in the
> + * root of the sysfs tree.
> + *
> + * If this function returns an error, kobject_put() must be called to
> + * properly clean up the memory associated with the object.
> + *
> + * If the function is successful, the only way to properly clean up the
> + * memory is with a call to kobject_del(), in which case, a call to
> + * kobject_put() is not necessary (kobject_del() does the final
> + * kobject_put() to call the release function in the ktype's release
> + * pointer.)

This comment is inconsistent with your decision above not to add an 
extra kobject_put() into kobject_del().  (Unless such a line was added 
while I wasn't looking...)

Alan Stern

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