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scsi: lpfc: Fix crash on driver unload in wq free 

If a timer routine uses workqueues, it could fire before the workqueue is
allocated.

Fix by allocating the workqueue before the timer routines are setup

Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
James Smart 2019-08-14 16:56:34 -07:00 committed by Martin K. Petersen
parent 1d755d6477
commit 3cee98db26
1 changed files with 5 additions and 6 deletions
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11
drivers/scsi/lpfc/lpfc_init.c
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@ -6413,6 +6413,11 @@ lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
if (rc)
return -ENODEV;
/* Allocate all driver workqueues here */
/* The lpfc_wq workqueue for deferred irq use */
phba->wq = alloc_workqueue("lpfc_wq", WQ_MEM_RECLAIM, 0);
/*
* Initialize timers used by driver
*/
@ -6996,12 +7001,6 @@ lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
return error;
}
/* The lpfc_wq workqueue for deferred irq use, is only used for SLI4 */
if (phba->sli_rev == LPFC_SLI_REV4)
phba->wq = alloc_workqueue("lpfc_wq", WQ_MEM_RECLAIM, 0);
else
phba->wq = NULL;
return 0;
}