hg: dio/dev: 8136841: Segmentation fault if GPIO input pin is litened

[sergey.nazarkin at oracle.com]

Changeset: 4045c31c14f9
Author:    snazarki
Date:      2015-09-22 18:40 +0300
URL:       http://hg.openjdk.java.net/dio/dev/rev/4045c31c14f9

8136841: Segmentation fault if GPIO input pin is litened
Summary: Reorder listener assigment and start notification calls, javanotify is guarded against uninitialized variables.
Reviewed-by: alkonsta

! src/se/native/com/oracle/dio/dio_event_queue.cpp
! src/share/classes/com/oracle/dio/gpio/impl/GPIOPinImpl.java