Re: chrdev_open lifetime question

[Dmitry Torokhov]

Hi Pete,

On Monday 19 March 2007 21:02, Pete Zaitcev wrote:
> On Wed, 7 Mar 2007 17:23:05 -0500, "Dmitry Torokhov" <dmitry.torokhov@xxxxxxxxx> wrote:
> 
> > It seems that if a process keeps a character device open then other
> > processes will also be able to get into filp->f_op->open(inode,filp)
> > in chrdev_open() even after a driver called cdev_del() as part of its
> > unwind procedure. Is this correct or am I missing something?
> 
> I see no replies in the archives. Have you got any private ones?

No I have not.

> 
> Also, what's the context?

I want to switch input handlers to cdevs to rip table of devices out
of input core and lift limit on potential number of devices and was
pondering locking implications.

-- 
Dmitry
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