There is already a neat check_free_port() function for finding an available port
atomically, so use that and make two additional tweaks:
- no need to allocate two separate ports; per unfsd documentation they can be the same
- move lockfile release until after unfsd has been shut down and the port(s) used has been freed
[YOCTO #15077]
(From OE-Core rev: dee96e82fb04ea99ecd6c25513c7bd368df3bd37)
Signed-off-by: Alexander Kanavin <alex@linutronix.de>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
66b7727577