[linux-dvb] Problem with close DVB device file descriptor

[Eugene Perepelitzki]

I'm developing CI device driver for proprietary HW using dvb-core module.
I use dvbdev and dvb_ca_en50221 low level API for registration of my low level driver. 
I got working physical layer of DVB-CI in kenel dvb-ca thread and started to test transport, 
session and application layers using dvb-app/test aplications.
It also start working but if application close file descriptor or application exits I get kernel Ooops.
It seems that  dvb_ca_en5021_io_release function is not called.
Does somebody have an idea what is the problem ?
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