Drivers: hv: vmbus: Fix a rescind issue

Drivers: hv: vmbus: Fix a rescind issue

commit 7fa32e5ec28b1609abc0b797b58267f725fc3964 upstream.

The current rescind processing code will not correctly handle
the case where the host immediately rescinds a channel that has
been offerred. In this case, we could be blocked in the open call and
since the channel is rescinded, the host will not respond and we could
be blocked forever in the vmbus open call.i Fix this problem.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>