hg: dio/dev: 8131152: A copy GPIOPortConfig instance is not equal to original one

[sergey.nazarkin at oracle.com]

Changeset: a2c106aa4c74
Author:    snazarki
Date:      2015-07-14 15:46 +0300
URL:       http://hg.openjdk.java.net/dio/dev/rev/a2c106aa4c74

8131152: A copy GPIOPortConfig instance is not equal to original one
Summary: Added null verification
Reviewed-by: snazarki
Contributed-by: alexey.savin at oracle.com

! src/se/linux/native/com/oracle/dio/rs485_enabler.cpp
! src/share/classes/jdk/dio/counter/PulseCounterConfig.java