Re: [RFC PATCH 3/7] drivers/zio: core files for the ZIO input/output

[Greg KH <greg@kroah.com>]

On Sat, Nov 26, 2011 at 11:58:41PM +0100, Federico Vaga wrote:
> In data sabato 26 novembre 2011 12:03:41, Greg KH ha scritto:
> > On Sat, Nov 26, 2011 at 06:30:42PM +0100, Alessandro Rubini wrote:
> > > +static struct kobj_type zdktype = { /* For standard and extended
> > > attribute */ +	.release   = NULL,
> > 
> > Sweet!
> > 
> > As-per the in-kernel documentation, I now get to mock you for doing
> > this :)
> > 
> > Please NEVER DO THIS, you are ignoring the messages that the kernel
> > sends you when you remove one of these devices, and causing a memory
> > leak.
> 
> Honestly we never see any messages about this.

Really?  Then you never removed that kobject from memory.  Please go
read the kobject documentation for more details.

> > Not nice at all, yet another reason to use a 'struct device'.
> 
> I don't think is a valid reason, because device_release implementation require 
> us to implement a release method within device, or device_type or class; so we 
> can use kobj_type as well.

True, but it tries to make things easier to not get wrong, like you are
here.

Please fix this.

greg k-h