voicebus_quiesce is like voicebus_stop, except that it doesn't wait for any
information to come back from the card. This prevents kexec from blocking
waiting for information from a potentially dead card.
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Michael Spiceland <mspiceland@digium.com>
Acked-by: Kinsey Moore <kmoore@digium.com>
git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9880 a0bf4364-ded3-4de4-8d8a-66a801d63aff