diff options
Diffstat (limited to 'drivers/nvme/host/fc.c')
| -rw-r--r-- | drivers/nvme/host/fc.c | 26 |
1 files changed, 20 insertions, 6 deletions
diff --git a/drivers/nvme/host/fc.c b/drivers/nvme/host/fc.c index 023710e08e0d..48454cb7a0fc 100644 --- a/drivers/nvme/host/fc.c +++ b/drivers/nvme/host/fc.c @@ -2364,9 +2364,15 @@ nvme_fc_ctrl_free(struct kref *ref) struct nvme_fc_ctrl *ctrl = container_of(ref, struct nvme_fc_ctrl, ref); unsigned long flags; + bool owns_opts; - /* remove from rport list */ + /* + * Presence on the rport list means nvme_fc_init_ctrl() completed, + * and with it ownership of the fabrics options passed to it. If it + * failed instead, the options still belong to nvmf_create_ctrl(). + */ spin_lock_irqsave(&ctrl->rport->lock, flags); + owns_opts = !list_empty(&ctrl->ctrl_list); list_del(&ctrl->ctrl_list); spin_unlock_irqrestore(&ctrl->rport->lock, flags); @@ -2376,7 +2382,7 @@ nvme_fc_ctrl_free(struct kref *ref) nvme_fc_rport_put(ctrl->rport); ida_free(&nvme_fc_ctrl_cnt, ctrl->cnum); - if (ctrl->ctrl.opts) + if (owns_opts) nvmf_free_options(ctrl->ctrl.opts); kfree(ctrl); } @@ -3575,14 +3581,14 @@ nvme_fc_init_ctrl(struct device *dev, struct nvmf_ctrl_options *opts, if (!nvme_change_ctrl_state(&ctrl->ctrl, NVME_CTRL_CONNECTING)) { dev_err(ctrl->ctrl.device, "NVME-FC{%d}: failed to init ctrl state\n", ctrl->cnum); - goto fail_ctrl; + goto fail_unlist; } if (!queue_delayed_work(nvme_wq, &ctrl->connect_work, 0)) { dev_err(ctrl->ctrl.device, "NVME-FC{%d}: failed to schedule initial connect\n", ctrl->cnum); - goto fail_ctrl; + goto fail_unlist; } flush_delayed_work(&ctrl->connect_work); @@ -3593,14 +3599,22 @@ nvme_fc_init_ctrl(struct device *dev, struct nvmf_ctrl_options *opts, return &ctrl->ctrl; +fail_unlist: + /* + * Leaving the list hands the options back to nvmf_create_ctrl(); + * see nvme_fc_ctrl_free(). Re-init so that list_empty() there + * reports the controller as unlisted. + */ + spin_lock_irqsave(&rport->lock, flags); + list_del_init(&ctrl->ctrl_list); + spin_unlock_irqrestore(&rport->lock, flags); + fail_ctrl: nvme_change_ctrl_state(&ctrl->ctrl, NVME_CTRL_DELETING); cancel_work_sync(&ctrl->ioerr_work); cancel_work_sync(&ctrl->ctrl.reset_work); cancel_delayed_work_sync(&ctrl->connect_work); - ctrl->ctrl.opts = NULL; - if (ctrl->ctrl.admin_tagset) nvme_remove_admin_tag_set(&ctrl->ctrl); /* initiate nvme ctrl ref counting teardown */ |
