From: Quinn Tran <qtran@marvell.com>
Date: Fri, 15 Feb 2019 22:37:18 +0000 (-0800)
Subject: scsi: qla2xxx: Prevent SysFS access when chip is down
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=b726d99d72fd4b36ae82efb35d0073b0c9441205;p=linux.git

scsi: qla2xxx: Prevent SysFS access when chip is down

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>
---

diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c
index ee9f943f4d079..f8fd482a06e0c 100644
--- a/drivers/scsi/qla2xxx/qla_attr.c
+++ b/drivers/scsi/qla2xxx/qla_attr.c
@@ -543,6 +543,9 @@ qla2x00_sysfs_write_vpd(struct file *filp, struct kobject *kobj,
 	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;