[SCSI] iscsi_tcp, ib_iser Enable module refcounting for iscsi host template

This prevents the iscsi modules from being unloaded while
there are active mounts from an iscsi target.

Signed-off-by: Olaf Kirch <olaf.kirch@oracle.com>
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

drivers/infiniband/ulp/iser/iscsi_iser.c

@@ -548,6 +548,7 @@ iscsi_iser_ep_disconnect(__u64 ep_handle)
 }
 
 static struct scsi_host_template iscsi_iser_sht = {
+	.module                 = THIS_MODULE,
 	.name                   = "iSCSI Initiator over iSER, v." DRV_VER,
 	.queuecommand           = iscsi_queuecommand,
 	.can_queue		= ISCSI_DEF_XMIT_CMDS_MAX - 1,

drivers/scsi/iscsi_tcp.c

@@ -2221,6 +2221,7 @@ static int iscsi_tcp_slave_configure(struct scsi_device *sdev)
 }
 
 static struct scsi_host_template iscsi_sht = {
+	.module			= THIS_MODULE,
 	.name			= "iSCSI Initiator over TCP/IP",
 	.queuecommand           = iscsi_queuecommand,
 	.change_queue_depth	= iscsi_change_queue_depth,