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hpsa: create workqueue after the driver is ready for use
Don't create the resubmit workqueue in hpsa_init_one until everything else is ready to use, so everything can be freed in reverse order of when they were allocated without risking freeing things while workqueue items are still active. Destroy the workqueue in the right order in hpsa_undo_allocations_after_kdump_soft_reset too. Reviewed-by: Scott Teel <scott.teel@pmcs.com> Reviewed-by: Kevin Barnett <kevin.barnett@pmcs.com> Reviewed-by: Tomas Henzl <thenzl@redhat.com> Reviewed-by: Hannes Reinecke <hare@Suse.de> Signed-off-by: Robert Elliott <elliott@hp.com> Signed-off-by: Don Brace <don.brace@pmcs.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: James Bottomley <JBottomley@Odin.com>
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@ -7674,30 +7674,18 @@ reinit_after_soft_reset:
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atomic_set(&h->passthru_cmds_avail, HPSA_MAX_CONCURRENT_PASSTHRUS);
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atomic_set(&h->abort_cmds_available, HPSA_CMDS_RESERVED_FOR_ABORTS);
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h->rescan_ctlr_wq = hpsa_create_controller_wq(h, "rescan");
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if (!h->rescan_ctlr_wq) {
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rc = -ENOMEM;
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goto clean1;
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}
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h->resubmit_wq = hpsa_create_controller_wq(h, "resubmit");
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if (!h->resubmit_wq) {
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rc = -ENOMEM;
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goto clean1; /* aer/h */
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}
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/* Allocate and clear per-cpu variable lockup_detected */
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h->lockup_detected = alloc_percpu(u32);
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if (!h->lockup_detected) {
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dev_err(&h->pdev->dev, "Failed to allocate lockup detector\n");
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rc = -ENOMEM;
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goto clean1; /* wq/aer/h */
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goto clean1; /* aer/h */
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}
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set_lockup_detected_for_all_cpus(h, 0);
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rc = hpsa_pci_init(h);
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if (rc)
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goto clean2; /* lockup, wq/aer/h */
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goto clean2; /* lockup, aer/h */
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sprintf(h->devname, HPSA "%d", number_of_controllers);
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h->ctlr = number_of_controllers;
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@ -7713,7 +7701,7 @@ reinit_after_soft_reset:
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dac = 0;
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} else {
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dev_err(&pdev->dev, "no suitable DMA available\n");
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goto clean3; /* pci, lockup, wq/aer/h */
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goto clean3; /* pci, lockup, aer/h */
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}
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}
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@ -7722,16 +7710,16 @@ reinit_after_soft_reset:
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rc = hpsa_request_irqs(h, do_hpsa_intr_msi, do_hpsa_intr_intx);
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if (rc)
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goto clean3; /* pci, lockup, wq/aer/h */
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goto clean3; /* pci, lockup, aer/h */
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dev_info(&pdev->dev, "%s: <0x%x> at IRQ %d%s using DAC\n",
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h->devname, pdev->device,
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h->intr[h->intr_mode], dac ? "" : " not");
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rc = hpsa_alloc_cmd_pool(h);
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if (rc)
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goto clean4; /* irq, pci, lockup, wq/aer/h */
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goto clean4; /* irq, pci, lockup, aer/h */
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rc = hpsa_alloc_sg_chain_blocks(h);
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if (rc)
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goto clean5; /* cmd, irq, pci, lockup, wq/aer/h */
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goto clean5; /* cmd, irq, pci, lockup, aer/h */
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init_waitqueue_head(&h->scan_wait_queue);
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init_waitqueue_head(&h->abort_cmd_wait_queue);
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init_waitqueue_head(&h->abort_sync_wait_queue);
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@ -7744,7 +7732,20 @@ reinit_after_soft_reset:
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spin_lock_init(&h->devlock);
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rc = hpsa_put_ctlr_into_performant_mode(h);
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if (rc)
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goto clean6; /* sg, cmd, irq, pci, lockup, wq/aer/h */
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goto clean6; /* sg, cmd, irq, pci, lockup, aer/h */
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/* create the resubmit workqueue */
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h->rescan_ctlr_wq = hpsa_create_controller_wq(h, "rescan");
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if (!h->rescan_ctlr_wq) {
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rc = -ENOMEM;
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goto clean7;
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}
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h->resubmit_wq = hpsa_create_controller_wq(h, "resubmit");
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if (!h->resubmit_wq) {
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rc = -ENOMEM;
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goto clean7; /* aer/h */
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}
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/*
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* At this point, the controller is ready to take commands.
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@ -7786,7 +7787,7 @@ reinit_after_soft_reset:
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rc = hpsa_kdump_soft_reset(h);
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if (rc)
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/* Neither hard nor soft reset worked, we're hosed. */
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goto clean7;
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goto clean8;
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dev_info(&h->pdev->dev, "Board READY.\n");
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dev_info(&h->pdev->dev,
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@ -7823,7 +7824,7 @@ reinit_after_soft_reset:
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hpsa_hba_inquiry(h);
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rc = hpsa_register_scsi(h); /* hook ourselves into SCSI subsystem */
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if (rc)
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goto clean7;
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goto clean8; /* wq, perf, sg, cmd, irq, pci, lockup, aer/h */
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/* Monitor the controller for firmware lockups */
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h->heartbeat_sample_interval = HEARTBEAT_SAMPLE_INTERVAL;
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@ -7835,19 +7836,20 @@ reinit_after_soft_reset:
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h->heartbeat_sample_interval);
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return 0;
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clean7: /* perf, sg, cmd, irq, pci, lockup, wq/aer/h */
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clean8: /* perf, sg, cmd, irq, pci, lockup, aer/h */
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kfree(h->hba_inquiry_data);
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clean7: /* perf, sg, cmd, irq, pci, lockup, aer/h */
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hpsa_free_performant_mode(h);
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h->access.set_intr_mask(h, HPSA_INTR_OFF);
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clean6: /* sg, cmd, irq, pci, lockup, wq/aer/h */
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hpsa_free_sg_chain_blocks(h);
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clean5: /* cmd, irq, pci, lockup, wq/aer/h */
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clean5: /* cmd, irq, pci, lockup, aer/h */
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hpsa_free_cmd_pool(h);
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clean4: /* irq, pci, lockup, wq/aer/h */
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clean4: /* irq, pci, lockup, aer/h */
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hpsa_free_irqs(h);
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clean3: /* pci, lockup, wq/aer/h */
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clean3: /* pci, lockup, aer/h */
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hpsa_free_pci_init(h);
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clean2: /* lockup, wq/aer/h */
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clean2: /* lockup, aer/h */
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if (h->lockup_detected) {
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free_percpu(h->lockup_detected);
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h->lockup_detected = NULL;
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@ -7946,9 +7948,9 @@ static void hpsa_remove_one(struct pci_dev *pdev)
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hpsa_free_device_info(h); /* scan */
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hpsa_unregister_scsi(h); /* init_one "8" */
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kfree(h->hba_inquiry_data); /* init_one "8" */
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h->hba_inquiry_data = NULL; /* init_one "8" */
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hpsa_unregister_scsi(h); /* init_one 9 */
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kfree(h->hba_inquiry_data); /* init_one 9 */
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h->hba_inquiry_data = NULL; /* init_one 9 */
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hpsa_free_performant_mode(h); /* init_one 7 */
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hpsa_free_sg_chain_blocks(h); /* init_one 6 */
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hpsa_free_cmd_pool(h); /* init_one 5 */
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