fabrics: open transport handle for discovery controller

The discovery controller is using the identify command and also the get
log page command. Thus, create the transport handle for the discovery
controller.

Signed-off-by: Daniel Wagner <[email protected]>

Author: igaw

libnvme/src/nvme/fabrics.c

@@ -2313,6 +2313,12 @@ static int nvmf_create_discovery_ctrl(struct nvme_global_ctx *ctx,
 		return -ENOMEM;
 	}
 
+	ret = nvme_open(ctx, c->name, &c->hdl);
+	if (ret) {
+		nvme_msg(ctx, LOG_ERR, "failed to open %s\n", c->name);
+		return ret;
+	}
+
 	/* Find out the name of discovery controller */
 	ret = nvme_ctrl_identify(c, id);
 	if (ret)  {