ATTO adapters do not support this feature. If the firmware fails to be
ready, it should not check the examined registers in order to examine
the state of the feature in order to prevent undefined behavior.
Signed-off-by: Benjamin Rood <br...@attotech.com>
---
drivers/scsi/pm8001/pm80xx_hwi.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/scsi/pm8001/pm80xx_hwi.c b/drivers/scsi/pm8001/pm80xx_hwi.c
index 29c548b..eb4fee6 100644
--- a/drivers/scsi/pm8001/pm80xx_hwi.c
+++ b/drivers/scsi/pm8001/pm80xx_hwi.c
@@ -1267,6 +1267,8 @@ pm80xx_chip_soft_rst(struct pm8001_hba_info *pm8001_ha)
/* check iButton feature support for motherboard controller */
if (pm8001_ha->pdev->subsystem_vendor !=
PCI_VENDOR_ID_ADAPTEC2 &&
+ pm8001_ha->pdev->subsystem_vendor !=
+ PCI_VENDOR_ID_ATTO &&
pm8001_ha->pdev->subsystem_vendor != 0) {
ibutton0 = pm8001_cr32(pm8001_ha, 0,
MSGU_HOST_SCRATCH_PAD_6);
--
2.4.3
--
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