From fc25f79af321c01a739150ba2c09435cf977a63d Mon Sep 17 00:00:00 2001
From: Dan Williams <dan.j.williams@intel.com>
Date: Mon, 30 Apr 2012 11:57:44 -0700
Subject: [PATCH] isci: fix oem parameter validation on single controller skus
OEM parameters [1] are parsed from the platform option-rom / efi
driver. By default the driver was validating the parameters for the
dual-controller case, but in single-controller case only the first set
of parameters may be valid.
Limit the validation to the number of actual controllers detected
otherwise the driver may fail to parse the valid parameters leading to
driver-load or runtime failures.
[1] the platform specific set of phy address, configuration,and analog
tuning values
[stable v3.0+]
Cc: <stable@vger.kernel.org>
Reported-by: Dave Jiang <dave.jiang@intel.com>
Tested-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---
drivers/scsi/isci/init.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/scsi/isci/init.c b/drivers/scsi/isci/init.c
index fdae42f572b6..9e1c83e425ed 100644
--- a/drivers/scsi/isci/init.c
+++ b/drivers/scsi/isci/init.c
@@ -639,7 +639,7 @@ static int __devinit isci_pci_probe(struct pci_dev *pdev, const struct pci_devic
if (!orom)
orom = isci_request_oprom(pdev);
- for (i = 0; orom && i < ARRAY_SIZE(orom->ctrl); i++) {
+ for (i = 0; orom && i < num_controllers(pdev); i++) {
if (sci_oem_parameters_validate(&orom->ctrl[i],
orom->hdr.version)) {
dev_warn(&pdev->dev,
--
2.34.1