4.9-stable patches

[thirdparty/kernel/stable-queue.git] / releases / 4.19.53 / scsi-lpfc-add-check-for-loss-of-ndlp-when-sending-rr.patch

From 8e801179e64f5e636bf838292db11f99c5b46279 Mon Sep 17 00:00:00 2001
From: James Smart <jsmart2021@gmail.com>
Date: Mon, 6 May 2019 17:26:49 -0700
Subject: scsi: lpfc: add check for loss of ndlp when sending RRQ

[ Upstream commit c8cb261a072c88ca1aff0e804a30db4c7606521b ]

There was a missing qualification of a valid ndlp structure when calling to
send an RRQ for an abort.  Add the check.

Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Tested-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/lpfc/lpfc_els.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c
index 0d214e6b8e9a..f3c6801c0b31 100644
--- a/drivers/scsi/lpfc/lpfc_els.c
+++ b/drivers/scsi/lpfc/lpfc_els.c
@@ -7094,7 +7094,10 @@ int
 lpfc_send_rrq(struct lpfc_hba *phba, struct lpfc_node_rrq *rrq)
 {
 	struct lpfc_nodelist *ndlp = lpfc_findnode_did(rrq->vport,
-							rrq->nlp_DID);
+						       rrq->nlp_DID);
+	if (!ndlp)
+		return 1;
+
 	if (lpfc_test_rrq_active(phba, ndlp, rrq->xritag))
 		return lpfc_issue_els_rrq(rrq->vport, ndlp,
 					 rrq->nlp_DID, rrq);
-- 
2.20.1