Commit 7ff44499 authored Dec 07, 2018 by Dave Carroll Committed by Martin K. Petersen Dec 19, 2018

scsi: smartpqi: correct volume status



- fix race condition when a unit is deleted after an RLL,
  and before we have gotten the LV_STATUS page of the unit.
  - In this case we will get a standard inquiry, rather than
    the desired page.  This will result in a unit presented
    which no longer exists.
  - If we ask for LV_STATUS, insure we get LV_STATUS

Reviewed-by: Murthy Bhat <murthy.bhat@microsemi.com>
Reviewed-by: Mahesh Rajashekhara <mahesh.rajashekhara@microsemi.com>
Reviewed-by: Scott Teel <scott.teel@microsemi.com>
Reviewed-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Dave Carroll <david.carroll@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

parent a9a68101

drivers/scsi/smartpqi/smartpqi_init.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -1270,6 +1270,9 @@ static void pqi_get_volume_status(struct pqi_ctrl_info *ctrl_info,
		if (rc)
		goto out;

		if (vpd->page_code != CISS_VPD_LV_STATUS)
		goto out;

		page_length = offsetof(struct ciss_vpd_logical_volume_status,
		volume_status) + vpd->page_length;
		if (page_length < sizeof(*vpd))

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