[04/42] lpfc: Fix crash on driver unload in wq free
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Message ID 20190814235712.4487-5-jsmart2021@gmail.com
State Accepted
Headers show
Series
  • lpfc: Update lpfc to revision 12.4.0.0
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Commit Message

James Smart Aug. 14, 2019, 11:56 p.m. UTC
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>
---
 drivers/scsi/lpfc/lpfc_init.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

Patch
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diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
index 02231370428a..50d641f65af9 100644
--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -6415,6 +6415,11 @@  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
 	 */
@@ -6998,12 +7003,6 @@  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;
 }