Miroslav Lichvar 2962fc6286 ntp: check PHC index before opening device ...

Apparently, it is possible for an interface to report all necessary
flags for HW timestamping without having a PHC. Check the PHC index to
avoid an error message in the system log saying that /dev/ptp-1 cannot
be opened.

2018-05-25 10:53:21 +02:00

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