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Date: Wed, 29 Nov 2000 19:52:56 -0500 (EST)
From: Alexander Viro <viro@math.psu.edu>
To: Randy Dunlap <randy.dunlap@intel.com>
cc: linux-kernel@vger.kernel.org
Subject: Re: usbdevfs mount 2x, umount 1x
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On Wed, 29 Nov 2000, Randy Dunlap wrote:

> [I reported this a couple of months back.  Got no
> feedback on it.  If it's just a DDT (don't do that)
> or a user error, please say so.]
> 
> Summary:  After I mount usbdevfs 2 times, and umount it
> 1 time, the usbcore module use count prevents it from
> being rmmod-ed.

So umount it twice. And yes, it's "don't do it, then". Every mount()
increments the use count. Every umount() decrements it. You want it
to become 0. Draw your conclusions...

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