Merge remote-tracking branch 'remotes/armbru/tags/pull-misc-2020-12-10' into staging

Miscellaneous patches for 2020-12-10

# gpg: Signature made Thu 10 Dec 2020 16:17:43 GMT
# gpg:                using RSA key 354BC8B3D7EB2A6B68674E5F3870B400EB918653
# gpg:                issuer "armbru@redhat.com"
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>" [full]
# gpg:                 aka "Markus Armbruster <armbru@pond.sub.org>" [full]
# Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867  4E5F 3870 B400 EB91 8653

* remotes/armbru/tags/pull-misc-2020-12-10:
  docs/devel/writing-qmp-commands.txt: Fix docs
  qapi: Normalize version references x.y.0 to just x.y
  Tweak a few "Parameter 'NAME' expects THING" error message
  qom: Improve {qom,device}-list-properties error messages
  qga: Tweak a guest-shutdown error message
  qga: Replace an unreachable error by abort()
  ui: Tweak a client_migrate_info error message
  ui: Improve a client_migrate_info error message
  ui: Improve some set_passwd, expire_password error messages
  block: Improve some block-commit, block-stream error messages
  qerror: Eliminate QERR_ macros used in just one place
  qerror: Drop unused QERR_ macros
  Clean up includes

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 6 insertions, 11 deletions

diff --git a/qom/qom-qmp-cmds.c b/qom/qom-qmp-cmds.c
index 310ab2d048..2dd233f293 100644
--- a/qom/qom-qmp-cmds.c
+++ b/qom/qom-qmp-cmds.c
@@ -138,15 +138,10 @@ ObjectPropertyInfoList *qmp_device_list_properties(const char *typename,
         return NULL;
     }
 
-    klass = object_class_dynamic_cast(klass, TYPE_DEVICE);
-    if (klass == NULL) {
-        error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "typename", TYPE_DEVICE);
-        return NULL;
-    }
-
-    if (object_class_is_abstract(klass)) {
+    if (!object_class_dynamic_cast(klass, TYPE_DEVICE)
+        || object_class_is_abstract(klass)) {
         error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "typename",
-                   "non-abstract device type");
+                   "a non-abstract device type");
         return NULL;
     }
 
@@ -208,9 +203,9 @@ ObjectPropertyInfoList *qmp_qom_list_properties(const char *typename,
         return NULL;
     }
 
-    klass = object_class_dynamic_cast(klass, TYPE_OBJECT);
-    if (klass == NULL) {
-        error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "typename", TYPE_OBJECT);
+    if (!object_class_dynamic_cast(klass, TYPE_OBJECT)) {
+        error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "typename",
+                   "a QOM type");
         return NULL;
     }