tree 4340776a34bd4748d9fa269e0005957f58bdc690
parent faf6330b91d7e9768aa10f3f22484885a83e0f02
author Peter Lei <peter.lei@ieee.org> 1553851989 -0500
committer Peter Lei <peter.lei@ieee.org> 1553852123 -0500

Fix callout stop deadlock

If a callout stop is called from the executing callout's func on the
same thread, the callout will deadlock itself waiting on wait_cond.
This adds a check to prevent that.