From: Quinn Tran <qtran@marvell.com>
Date: Fri, 15 Feb 2019 14:37:18 -0800
Subject: scsi: qla2xxx: Prevent SysFS access when chip is down
Patch-mainline: v5.1-rc1
Git-commit: b726d99d72fd4b36ae82efb35d0073b0c9441205
References: bsc#1123034 bsc#1131304 bsc#1127988 bsc#1136215

Prevent user from sending commands through sysfs while FW is not running or
reset is in progress.

Signed-off-by: Quinn Tran <qtran@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_attr.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/drivers/scsi/qla2xxx/qla_attr.c
+++ b/drivers/scsi/qla2xxx/qla_attr.c
@@ -543,6 +543,9 @@ qla2x00_sysfs_write_vpd(struct file *fil
 	if (unlikely(pci_channel_offline(ha->pdev)))
 		return 0;
 
+	if (qla2x00_chip_is_down(vha))
+		return 0;
+
 	if (!capable(CAP_SYS_ADMIN) || off != 0 || count != ha->vpd_size ||
 	    !ha->isp_ops->write_nvram)
 		return 0;