scsi: iscsi: Fix set_param() handling

In commit 9e67600 ("scsi: iscsi: Fix race condition between login and
sync thread") we meant to add a check where before we call ->set_param() we
make sure the iscsi_cls_connection is bound. The problem is that between
versions 4 and 5 of the patch the deletion of the unchecked set_param()
call was dropped so we ended up with 2 calls. As a result we can still hit
a crash where we access the unbound connection on the first call.

This patch removes that first call.

Fixes: 9e67600 ("scsi: iscsi: Fix race condition between login and sync thread")
Link: https://lore.kernel.org/r/[email protected]
Reviewed-by: Lee Duncan <[email protected]>
Reviewed-by: Li Feng <[email protected]>
Signed-off-by: Mike Christie <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>

Author: mikechristie

drivers/scsi/scsi_transport_iscsi.c

@@ -2930,8 +2930,6 @@ iscsi_set_param(struct iscsi_transport *transport, struct iscsi_uevent *ev)
 			session->recovery_tmo = value;
 		break;
 	default:
-		err = transport->set_param(conn, ev->u.set_param.param,
-					   data, ev->u.set_param.len);
 		if ((conn->state == ISCSI_CONN_BOUND) ||
 			(conn->state == ISCSI_CONN_UP)) {
 			err = transport->set_param(conn, ev->u.set_param.param,