commit a43770df5dbbe90bbe8ccb25e7c570169d10710b
author Markus Armbruster <armbru@redhat.com> Tue Jul 07 18:06:13 2020 +0200
committer Markus Armbruster <armbru@redhat.com> Fri Jul 10 15:18:09 2020 +0200
tree 71dc85a28d3bc760dfc39e5e09a2b37691958ba3
parent 2d226cf6d18c853a3dca3fae1442be399caa2e6f

hmp: Ignore Error objects where the return value suffices

qdev_print_props() receives and throws away Error objects just to
check for object_property_get_str() and object_property_print()
failure.  Unnecessary, both return suitable values, so use those
instead.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20200707160613.848843-46-armbru@redhat.com>

qdev-monitor.c

diff --git a/qdev-monitor.c b/qdev-monitor.c
index 9665a53..71ebce1 100644
--- a/qdev-monitor.c
+++ b/qdev-monitor.c
@@ -697,22 +697,22 @@
     if (!props)
         return;
     for (; props->name; props++) {
-        Error *err = NULL;
         char *value;
         char *legacy_name = g_strdup_printf("legacy-%s", props->name);
+
         if (object_property_get_type(OBJECT(dev), legacy_name, NULL)) {
-            value = object_property_get_str(OBJECT(dev), legacy_name, &err);
+            value = object_property_get_str(OBJECT(dev), legacy_name, NULL);
         } else {
-            value = object_property_print(OBJECT(dev), props->name, true, &err);
+            value = object_property_print(OBJECT(dev), props->name, true,
+                                          NULL);
         }
         g_free(legacy_name);
 
-        if (err) {
-            error_free(err);
+        if (!value) {
             continue;
         }
         qdev_printf("%s = %s\n", props->name,
-                    value && *value ? value : "<null>");
+                    *value ? value : "<null>");
         g_free(value);
     }
 }