From: Sawan Chandak <sawan.chandak@cavium.com>
Date: Mon, 4 Dec 2017 22:45:04 +0000 (-0800)
Subject: scsi: qla2xxx: Fix NPIV host cleanup in target mode
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=1411448e0a1b96955f64478fc3f04d0ff1edc704;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

scsi: qla2xxx: Fix NPIV host cleanup in target mode

commit 3be63b1e1838e35ce93e83f19573e949f4b389b4 upstream.

Add check to make sure we are cleaning up global target host list only
for NPIV hosts

Fixes: bdbe24de281e2 ("scsi: qla2xxx: Cleanup NPIV host in target mode during config teardown")
Cc: <stable@vger.kernel.org> # 4.10+
Signed-off-by: Sawan Chandak <sawan.chandak@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c
index 658f49859423..7a7c4feab9cc 100644
--- a/drivers/scsi/qla2xxx/qla_target.c
+++ b/drivers/scsi/qla2xxx/qla_target.c
@@ -1561,8 +1561,11 @@ static void qlt_release(struct qla_tgt *tgt)
 
 	btree_destroy64(&tgt->lun_qpair_map);
 
-	if (ha->tgt.tgt_ops && ha->tgt.tgt_ops->remove_target)
-		ha->tgt.tgt_ops->remove_target(vha);
+	if (vha->vp_idx)
+		if (ha->tgt.tgt_ops &&
+		    ha->tgt.tgt_ops->remove_target &&
+		    vha->vha_tgt.target_lport_ptr)
+			ha->tgt.tgt_ops->remove_target(vha);
 
 	vha->vha_tgt.qla_tgt = NULL;