From 779c5a5debf219b87cd335852ad060fa79acf3e8 Mon Sep 17 00:00:00 2001
From: Rob Norris <rob.norris@klarasystems.com>
Date: Thu, 19 Dec 2024 20:11:54 +1100
Subject: [PATCH] zpool_get_vdev_prop_value: show missing vdev userprops

If a vdev userprop is not found, present it as value '-', default
source, so it matches the output from pool userprops.

Sponsored-by: Klara, Inc.
Sponsored-by: Wasabi Technology, Inc.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Signed-off-by: Rob Norris <rob.norris@klarasystems.com>
Closes #16887
---
 lib/libzfs/libzfs_pool.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/libzfs/libzfs_pool.c b/lib/libzfs/libzfs_pool.c
index f256535e8ea0..64f9d1f6eb49 100644
--- a/lib/libzfs/libzfs_pool.c
+++ b/lib/libzfs/libzfs_pool.c
@@ -5342,7 +5342,8 @@ zpool_get_vdev_prop_value(nvlist_t *nvprop, vdev_prop_t prop, char *prop_name,
 			strval = fnvlist_lookup_string(nv, ZPROP_VALUE);
 		} else {
 			/* user prop not found */
-			return (-1);
+			src = ZPROP_SRC_DEFAULT;
+			strval = "-";
 		}
 		(void) strlcpy(buf, strval, len);
 		if (srctype)