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Date:   Tue, 23 May 2023 21:41:27 +0000
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Subject: [PATCH 2/2] scsi: pm80xx: Add fatal error check for pm8001_lu_reset()
From:   Pranav Prasad <pranavpp@google.com>
To:     Jack Wang <jinpu.wang@cloud.ionos.com>,
        "James E . J . Bottomley" <jejb@linux.ibm.com>,
        "Martin K . Petersen" <martin.petersen@oracle.com>
Cc:     linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org,
        Igor Pylypiv <ipylypiv@google.com>,
        Pranav Prasad <pranavpp@google.com>
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From: Igor Pylypiv <ipylypiv@google.com>

This patch adds a fatal error check for pm8001_lu_reset().

Signed-off-by: Igor Pylypiv <ipylypiv@google.com>
Signed-off-by: Pranav Prasad <pranavpp@google.com>
---
 drivers/scsi/pm8001/pm8001_sas.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/scsi/pm8001/pm8001_sas.c b/drivers/scsi/pm8001/pm8001_sas.c
index b153f0966e5d..e302d5879bb7 100644
--- a/drivers/scsi/pm8001/pm8001_sas.c
+++ b/drivers/scsi/pm8001/pm8001_sas.c
@@ -918,6 +918,16 @@ int pm8001_lu_reset(struct domain_device *dev, u8 *lun)
 	struct pm8001_device *pm8001_dev = dev->lldd_dev;
 	struct pm8001_hba_info *pm8001_ha = pm8001_find_ha_by_dev(dev);
 	DECLARE_COMPLETION_ONSTACK(completion_setstate);
+
+	if (PM8001_CHIP_DISP->fatal_errors(pm8001_ha)) {
+		/* If the controller is in fatal error state,
+		 * we will not get a response from the controller
+		 */
+		pm8001_dbg(pm8001_ha, FAIL,
+				"LUN reset failed due to fatal errors\n");
+		return rc;
+	}
+
 	if (dev_is_sata(dev)) {
 		struct sas_phy *phy = sas_get_local_phy(dev);
 		sas_execute_internal_abort_dev(dev, 0, NULL);
-- 
2.40.1.698.g37aff9b760-goog