Brian Goff bea0c01ef1 Fix race in locker call to dec() ...

Can't safely use uint32 for locker since we need to decrement the count,
which requires loading the unit and doing some math, which is inherintly
racey.
Instead use Int32 which we can safely use with atomic and AddInt32 with
`-1`

Signed-off-by: Brian Goff <cpuguy83@gmail.com>
Upstream-commit: 985175fd8f8f662d5067bd62a89330e9a437375c
Component: engine

2015-11-24 11:59:09 -05:00

..

engine

Fix race in locker call to dec()

2015-11-24 11:59:09 -05:00