From: Dick Kennedy <dick.kennedy@broadcom.com>
Date: Sat, 30 Sep 2017 00:34:27 +0000 (-0700)
Subject: scsi: lpfc: fix pci hot plug crash in timer management routines
X-Git-Tag: v4.14.3~88
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=890d9fcd787e31d746070f6e4d5cdb674f8f1efc;p=platform%2Fkernel%2Flinux-exynos.git

scsi: lpfc: fix pci hot plug crash in timer management routines

commit 1901762f2ca2747ed269239ca5332a8023ce4e3d upstream.

During pci hot plug, the kernel crashes in timer management code.

The sli4 remove_one handler is not stoping the timers as it starts to
remove the port so that it can be swapped.

Fix: Stop the timers early in the handler routine.

Note: Fix in SLI-4 only. SLI-3 already stopped the timers properly.

Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
index 100bc4c..101ff3d 100644
--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -11420,6 +11420,7 @@ lpfc_pci_remove_one_s4(struct pci_dev *pdev)
 	lpfc_debugfs_terminate(vport);
 	lpfc_sli4_hba_unset(phba);
 
+	lpfc_stop_hba_timers(phba);
 	spin_lock_irq(&phba->hbalock);
 	list_del_init(&vport->listentry);
 	spin_unlock_irq(&phba->hbalock);