tree 1b03e42aff517ff5f7e44de5ca2f5f27d9cf1b42
parent 1de72ec158a133866cb630ea49b3a6d92af76071
author Peter Lei <peter.lei@ieee.org> 1553534742 -0500
committer Peter Lei <peter.lei@ieee.org> 1553604042 -0500

Pull in missing guard for the currently executing callout

The code to guard the currently executing callout while being in
process was not ported in for some reason. This leaves open the
possibility for the currently executing callout's function to free
the callout from another thread while running.