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scsi: qla2xxx: Fix crash on session cleanup with unload 

commit 50457dab67 upstream.

On unload, session cleanup prematurely gave the signal for driver unload
path to advance.

Link: https://lore.kernel.org/r/20200929102152.32278-6-njavali@marvell.com
Fixes: 726b854870 ("qla2xxx: Add framework for async fabric discovery")
Cc: stable@vger.kernel.org
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
5.4-rM2-2.2.x-imx-squashed
Quinn Tran 2020-09-29 03:21:50 -07:00 committed by Greg Kroah-Hartman
parent f0ef0e2299
commit a0bdb5b163
1 changed files with 7 additions and 6 deletions
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13
drivers/scsi/qla2xxx/qla_target.c
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@ -1230,14 +1230,15 @@ void qlt_schedule_sess_for_deletion(struct fc_port *sess)
case DSC_DELETE_PEND:
return;
case DSC_DELETED:
if (tgt && tgt->tgt_stop && (tgt->sess_count == 0))
wake_up_all(&tgt->waitQ);
if (sess->vha->fcport_count == 0)
wake_up_all(&sess->vha->fcport_waitQ);
if (!sess->plogi_link[QLT_PLOGI_LINK_SAME_WWN] &&
!sess->plogi_link[QLT_PLOGI_LINK_CONFLICT])
!sess->plogi_link[QLT_PLOGI_LINK_CONFLICT]) {
if (tgt && tgt->tgt_stop && tgt->sess_count == 0)
wake_up_all(&tgt->waitQ);
if (sess->vha->fcport_count == 0)
wake_up_all(&sess->vha->fcport_waitQ);
return;
}
break;
case DSC_UPD_FCPORT:
/*