USB stack getting confused

[Hans Petter Selasky]

On 3/10/19 10:47 AM, Konstantin Belousov wrote:
>> Yes, I can do that if destroy_dev() ensures that d_close is called for
>> all open file handles once and only once before it returns. I think this
>> is where the problem comes from.
> See above.  For d_close it is impossible, for cdevpriv dtr it is already
> there by design.
> 

Yes, cdevpriv_dtr will wait for the final close() from user-space 
unfortunately. Or am I mistaken?

--HPS