File 0014-nvme-print-Handle-NULL-hostid-in-JSON-output.patch of Package nvme-cli.26591

From: Tomas Bzatek <tbzatek@redhat.com>
Date: Tue, 13 Sep 2022 16:54:44 +0200
Subject: nvme-print: Handle NULL hostid in JSON output
Git-commit: cc07ea605d1e89eea98ace6b16e8fd3305a6ee6d
References: git-fixes

For pcie devices there might be no hostid available, in case the
/etc/nvme/hostid file doesn't exist.

Acked-by: Daniel Wagner <dwagner@suse.de>
---
 nvme-print.c |   11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

--- a/nvme-print.c
+++ b/nvme-print.c
@@ -2501,12 +2501,14 @@ static void json_print_nvme_subsystem_li
 
 	nvme_for_each_host(r, h) {
 		nvme_subsystem_t s;
+		const char *hostid;
 
 		host_attrs = json_create_object();
 		json_object_add_value_string(host_attrs, "HostNQN",
 					     nvme_host_get_hostnqn(h));
-		json_object_add_value_string(host_attrs, "HostID",
-					     nvme_host_get_hostid(h));
+		hostid = nvme_host_get_hostid(h);
+		if (hostid)
+			json_object_add_value_string(host_attrs, "HostID", hostid);
 		subsystems = json_create_array();
 		nvme_for_each_subsystem(h, s) {
 			subsystem_attrs = json_create_object();
@@ -7327,9 +7329,12 @@ static void json_detail_list(nvme_root_t
 	nvme_for_each_host(r, h) {
 		struct json_object *hss = json_create_object();
 		struct json_object *jsslist = json_create_array();
+		const char *hostid;
 
 		json_object_add_value_string(hss, "HostNQN", nvme_host_get_hostnqn(h));
-		json_object_add_value_string(hss, "HostID", nvme_host_get_hostid(h));
+		hostid = nvme_host_get_hostid(h);
+		if (hostid)
+			json_object_add_value_string(hss, "HostID", hostid);
 
 		nvme_for_each_subsystem(h , s) {
 			struct json_object *jss = json_create_object();