diff --git a/drivers/block/ublk_drv.c b/drivers/block/ublk_drv.c
index 17b677b..e546932 100644
--- a/drivers/block/ublk_drv.c
+++ b/drivers/block/ublk_drv.c
@@ -2092,13 +2092,12 @@
 	struct ublk_device *ub;
 	int id;
 
-	class_destroy(ublk_chr_class);
-
-	misc_deregister(&ublk_misc);
-
 	idr_for_each_entry(&ublk_index_idr, ub, id)
 		ublk_remove(ub);
 
+	class_destroy(ublk_chr_class);
+	misc_deregister(&ublk_misc);
+
 	idr_destroy(&ublk_index_idr);
 	unregister_chrdev_region(ublk_chr_devt, UBLK_MINORS);
 }
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index 7be562a..505e16f 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -1093,7 +1093,7 @@
 	if (ns) {
 		if (ns->head->effects)
 			effects = le32_to_cpu(ns->head->effects->iocs[opcode]);
-		if (ns->head->ids.csi == NVME_CAP_CSS_NVM)
+		if (ns->head->ids.csi == NVME_CSI_NVM)
 			effects |= nvme_known_nvm_effects(opcode);
 		if (effects & ~(NVME_CMD_EFFECTS_CSUPP | NVME_CMD_EFFECTS_LBCC))
 			dev_warn_once(ctrl->device,
diff --git a/drivers/nvme/host/fc.c b/drivers/nvme/host/fc.c
index 4564f16..456ee42 100644
--- a/drivers/nvme/host/fc.c
+++ b/drivers/nvme/host/fc.c
@@ -3521,13 +3521,6 @@
 
 	nvme_fc_init_queue(ctrl, 0);
 
-	ret = nvme_alloc_admin_tag_set(&ctrl->ctrl, &ctrl->admin_tag_set,
-			&nvme_fc_admin_mq_ops,
-			struct_size((struct nvme_fcp_op_w_sgl *)NULL, priv,
-				    ctrl->lport->ops->fcprqst_priv_sz));
-	if (ret)
-		goto out_free_queues;
-
 	/*
 	 * Would have been nice to init io queues tag set as well.
 	 * However, we require interaction from the controller
@@ -3537,10 +3530,17 @@
 
 	ret = nvme_init_ctrl(&ctrl->ctrl, dev, &nvme_fc_ctrl_ops, 0);
 	if (ret)
-		goto out_cleanup_tagset;
+		goto out_free_queues;
 
 	/* at this point, teardown path changes to ref counting on nvme ctrl */
 
+	ret = nvme_alloc_admin_tag_set(&ctrl->ctrl, &ctrl->admin_tag_set,
+			&nvme_fc_admin_mq_ops,
+			struct_size((struct nvme_fcp_op_w_sgl *)NULL, priv,
+				    ctrl->lport->ops->fcprqst_priv_sz));
+	if (ret)
+		goto fail_ctrl;
+
 	spin_lock_irqsave(&rport->lock, flags);
 	list_add_tail(&ctrl->ctrl_list, &rport->ctrl_list);
 	spin_unlock_irqrestore(&rport->lock, flags);
@@ -3592,8 +3592,6 @@
 
 	return ERR_PTR(-EIO);
 
-out_cleanup_tagset:
-	nvme_remove_admin_tag_set(&ctrl->ctrl);
 out_free_queues:
 	kfree(ctrl->queues);
 out_free_ida:
diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index 1ff8843..c734934c 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -3102,6 +3102,7 @@
 
 	nvme_start_ctrl(&dev->ctrl);
 	nvme_put_ctrl(&dev->ctrl);
+	flush_work(&dev->ctrl.scan_work);
 	return 0;
 
 out_disable: