Currently a wake may occur between calling compare_addr() and performing the
select request; in that case the thread will never be woken. Prevent this by
taking a CS around both operations.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=46099Signed-off-by: Zebediah Figura <z.figura12@gmail.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>