From: Quinn Tran <qutran@marvell.com>
Date: Tue, 5 Nov 2019 07:06:53 -0800
Subject: scsi: qla2xxx: Fix driver unload hang
Patch-mainline: v5.5-rc1
Git-commit: dd322b7f3efc8cda085bb60eadc4aee6324eadd8
References: bsc#1143706 bsc#1082635 bsc#1154526 bsc#1048942

This patch fixes driver unload hang by removing msleep()

Fixes: d74595278f4ab ("scsi: qla2xxx: Add multiple queue pair functionality.")
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20191105150657.8092-5-hmadhani@marvell.com
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: Daniel Wagner <dwagner@suse.de>
---
 drivers/scsi/qla2xxx/qla_init.c |    2 --
 1 file changed, 2 deletions(-)

--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -9009,8 +9009,6 @@ int qla2xxx_delete_qpair(struct scsi_qla
 	struct qla_hw_data *ha = qpair->hw;
 
 	qpair->delete_in_progress = 1;
-	while (atomic_read(&qpair->ref_count))
-		msleep(500);
 
 	ret = qla25xx_delete_req_que(vha, qpair->req);
 	if (ret != QLA_SUCCESS)