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nvme-core: align fabrics_q teardown with admin_q in nvme_free_ctrl

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Currently, the final reference for the fabrics admin queue (fabrics_q)
is dropped inside nvme_remove_admin_tag_set(). However, the primary admin
queue (admin_q) defers dropping its final reference until
nvme_free_ctrl().

Move the blk_put_queue() call for fabrics_q from
nvme_remove_admin_tag_set() to nvme_free_ctrl(). This aligns the
lifecycle management of both admin queues, ensuring they are freed
symmetrically when the controller is finally torn down.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@kernel.org>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Signed-off-by: Maurizio Lombardi <mlombard@redhat.com>
Signed-off-by: Keith Busch <kbusch@kernel.org>
This commit is contained in:
Maurizio Lombardi 2026-05-14 10:32:53 +02:00 committed by Keith Busch
parent 97960b93d3
commit f702badaf7
1 changed files with 3 additions and 3 deletions
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6
drivers/nvme/host/core.c
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@ -4932,10 +4932,8 @@ void nvme_remove_admin_tag_set(struct nvme_ctrl *ctrl)
*/
nvme_stop_keep_alive(ctrl);
blk_mq_destroy_queue(ctrl->admin_q);
if (ctrl->ops->flags & NVME_F_FABRICS) {
if (ctrl->fabrics_q)
blk_mq_destroy_queue(ctrl->fabrics_q);
blk_put_queue(ctrl->fabrics_q);
}
blk_mq_free_tag_set(ctrl->admin_tagset);
}
EXPORT_SYMBOL_GPL(nvme_remove_admin_tag_set);
@ -5077,6 +5075,8 @@ static void nvme_free_ctrl(struct device *dev)
if (ctrl->admin_q)
blk_put_queue(ctrl->admin_q);
if (ctrl->fabrics_q)
blk_put_queue(ctrl->fabrics_q);
if (!subsys || ctrl->instance != subsys->instance)
ida_free(&nvme_instance_ida, ctrl->instance);
nvme_free_cels(ctrl);