mei: bus: Add bus related structures to mei_cl

We keep track of all MEI devices on the bus through a specific linked list.
We also have a mei_device instance in the mei_cl structure.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/misc/mei/client.c b/drivers/misc/mei/client.c
index 1569afe..e14397b 100644
--- a/drivers/misc/mei/client.c
+++ b/drivers/misc/mei/client.c
@@ -216,6 +216,7 @@
 	init_waitqueue_head(&cl->rx_wait);
 	init_waitqueue_head(&cl->tx_wait);
 	INIT_LIST_HEAD(&cl->link);
+	INIT_LIST_HEAD(&cl->device_link);
 	cl->reading_state = MEI_IDLE;
 	cl->writing_state = MEI_IDLE;
 	cl->dev = dev;