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authorMarkus Armbruster <armbru@redhat.com>2022-10-12 17:37:58 +0200
committerMarkus Armbruster <armbru@redhat.com>2022-10-27 07:54:45 +0200
commit3f7febc93785bf0e622072b01f846d2acbcd9c0b (patch)
tree99fecb8db9b01b99bb7ab8a9c9704ae1f720be63
parent344744e148e6e865f5a57e745b02a87e5ea534ad (diff)
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qom: Improve error messages when property has no getter or setter
When you try to set a property that has no setter, the error message blames "insufficient permission": $ qemu-system-x86_64 -S -display none -nodefaults -monitor stdio QEMU 7.1.50 monitor - type 'help' for more information (qemu) qom-set /machine type q35 Error: Insufficient permission to perform this operation This implies it could work with "sufficient permission". It can't. Change the error message to: Error: Property 'pc-i440fx-7.2-machine.type' is not writable Do the same for getting a property that has no getter. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20221012153801.2604340-2-armbru@redhat.com> Reviewed-by: David Hildenbrand <david@redhat.com>
-rw-r--r--qom/object.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/qom/object.c b/qom/object.c
index d346085..e5cef30 100644
--- a/qom/object.c
+++ b/qom/object.c
@@ -1383,7 +1383,8 @@ bool object_property_get(Object *obj, const char *name, Visitor *v,
}
if (!prop->get) {
- error_setg(errp, QERR_PERMISSION_DENIED);
+ error_setg(errp, "Property '%s.%s' is not readable",
+ object_get_typename(obj), name);
return false;
}
prop->get(obj, v, name, prop->opaque, &err);
@@ -1402,7 +1403,8 @@ bool object_property_set(Object *obj, const char *name, Visitor *v,
}
if (!prop->set) {
- error_setg(errp, QERR_PERMISSION_DENIED);
+ error_setg(errp, "Property '%s.%s' is not writable",
+ object_get_typename(obj), name);
return false;
}
prop->set(obj, v, name, prop->opaque, errp);