linux-kernel - Re: [PATCH RESEND] char_dev: add cdev->release() and convert cdev

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Message-ID: <20080828164741.GA17475@kroah.com>
Date:	Thu, 28 Aug 2008 09:47:41 -0700
From:	Greg KH <greg@...ah.com>
To:	Tejun Heo <tj@...nel.org>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH RESEND] char_dev: add cdev->release() and convert
	cdev_alloc() to use it

On Thu, Aug 28, 2008 at 06:36:56PM +0200, Tejun Heo wrote:
> Add cdev->release() so that cdev can be considered in more involved
> object lifetime management.  cdev_alloc() used a separate ktype for
> auto-free release().  This patch converts it to use cdev->release() so
> that there's no need for separate ktype and cdev_init() can be used
> for auto-free variant too.
> 
> Signed-off-by: Tejun Heo <tj@...nel.org>

Ick, I really don't want struct cdev to be used for lifecycle
management, as it is only for major:minor stuff.  Why do you want to
make this change?

thanks,

greg k-h
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