From a59d888c9ee376017bafda747d04007705a8d09f Mon Sep 17 00:00:00 2001
From: Adam Sutton <dev@adamsutton.me.uk>
Date: Tue, 4 Jun 2013 11:12:32 +0100
Subject: [PATCH] idnode: allow property list to be written without an object

This allows the "class" to be written out without the need for an
instanatiation. Useful for auto-generating grid layouts for a given
object type.
---
 src/prop.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/prop.c b/src/prop.c
index 3f69c86c..18d235d3 100644
--- a/src/prop.c
+++ b/src/prop.c
@@ -162,7 +162,8 @@ prop_add_params_to_msg(void *obj, const property_t *p, htsmsg_t *msg)
     htsmsg_add_str(m, "type", val2str(p[i].type, typetab) ?: "unknown");
     if (p->rdonly)
       htsmsg_add_u32(m, "rdonly", 1);
-    prop_read_value(obj, p+i, m, "value");
+    if (obj)
+      prop_read_value(obj, p+i, m, "value");
     htsmsg_add_msg(msg, NULL, m);
   }
 }