DevObj: fix race condition in work scheduling

PX4 / DriverFramework

Operating system and flight stack agnostic driver framework for POSIX (Linux, NuttX, Mac OS, QNX, VxWorks).

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Closed bkueng closed 8 years ago

bkueng commented 8 years ago

see comments in the code.

julianoes commented 8 years ago

@bkueng I assume you've tested this?

bkueng commented 8 years ago

yes. I never actually ran into the race problem, since it's fairly low prob, but I'm confident it's correct.