From 46d02f3e95be7f3f46afd4ab89070d0bb37d9912 Mon Sep 17 00:00:00 2001
From: GangCao <gang.cao@intel.com>
Date: Fri, 23 Dec 2022 01:58:14 -0500
Subject: [PATCH] lib/nvme: add the NULL check after getting ns

Change-Id: Ib6188269dfce1a9229850b06dc61d8bfc0ede74a
Signed-off-by: GangCao <gang.cao@intel.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/16072
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Mellanox Build Bot
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
---
 lib/nvme/nvme_ctrlr.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/lib/nvme/nvme_ctrlr.c b/lib/nvme/nvme_ctrlr.c
index 98b2a57ac..2fdab705e 100644
--- a/lib/nvme/nvme_ctrlr.c
+++ b/lib/nvme/nvme_ctrlr.c
@@ -4623,6 +4623,11 @@ spdk_nvme_ctrlr_attach_ns(struct spdk_nvme_ctrlr *ctrlr, uint32_t nsid,
 	}
 
 	ns = spdk_nvme_ctrlr_get_ns(ctrlr, nsid);
+	if (ns == NULL) {
+		NVME_CTRLR_ERRLOG(ctrlr, "spdk_nvme_ctrlr_get_ns failed!\n");
+		return -ENXIO;
+	}
+
 	return nvme_ns_construct(ns, nsid, ctrlr);
 }