nvme-pci: put the admin queue in nvme_dev_remove_admin

Once the controller is shutdown no one can access the admin queue.  Tear
it down in nvme_dev_remove_admin, which matches the flow in the other
drivers.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Tested-by Gerd Bayer <gbayer@linxu.ibm.com>

diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index c8f6ce5..f526ad5 100644 (file)
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -1747,6 +1747,7 @@ static void nvme_dev_remove_admin(struct nvme_dev *dev)
                 */
                nvme_start_admin_queue(&dev->ctrl);
                blk_mq_destroy_queue(dev->ctrl.admin_q);
+               blk_put_queue(dev->ctrl.admin_q);
                blk_mq_free_tag_set(&dev->admin_tagset);
        }
 }
@@ -2774,8 +2775,6 @@ static void nvme_pci_free_ctrl(struct nvme_ctrl *ctrl)
 
        nvme_dbbuf_dma_free(dev);
        nvme_free_tagset(dev);
-       if (dev->ctrl.admin_q)
-               blk_put_queue(dev->ctrl.admin_q);
        mempool_destroy(dev->iod_mempool);
        put_device(dev->dev);
        kfree(dev->queues);