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From: James Smart <jsmart2021@gmail.com>
Date: Tue, 12 Mar 2019 16:30:11 -0700
Subject: [PATCH] scsi: lpfc: Fix nvmet handling of first burst cmd
References: bsc#1136217,jsc#SLE-4722
Git-commit: 22b738ac3309c8712ac6aa8095e27bbc4067e4b3
Patch-mainline: v5.2-rc1

With negative test injection, the driver is receiving a command with first
burst enabled, meaning Sequence initiative is not passed with the command
frame. The driver notes the condition and discards the frame.  However the
driver calls the incorrect buffer free routine, resulting in a NULL pointer
reference.

For hbq buffer free, convert to using lpfc_rq_buf_free().

Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Hannes Reinecke <hare@suse.de>
---
 drivers/scsi/lpfc/lpfc_sli.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
index ec8bf11bb832..d48b522bc888 100644
--- a/drivers/scsi/lpfc/lpfc_sli.c
+++ b/drivers/scsi/lpfc/lpfc_sli.c
@@ -14026,7 +14026,7 @@ lpfc_sli4_nvmet_handle_rcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
 			return false;
 		}
 drop:
-		lpfc_in_buf_free(phba, &dma_buf->dbuf);
+		lpfc_rq_buf_free(phba, &dma_buf->hbuf);
 		break;
 	case FC_STATUS_INSUFF_BUF_FRM_DISC:
 		if (phba->nvmet_support) {
-- 
2.16.4