error: New QERR_BUS_NO_HOTPLUG

qerror.c

@@ -48,6 +48,10 @@ static const QErrorStringTable qerror_table[] = {
         .error_fmt = QERR_BUS_NOT_FOUND,
         .desc      = "Bus '%(bus)' not found",
     },
+    {
+        .error_fmt = QERR_BUS_NO_HOTPLUG,
+        .desc      = "Bus '%(bus)' does not support hotplugging",
+    },
     {
         .error_fmt = QERR_COMMAND_NOT_FOUND,
         .desc      = "The command %(name) has not been found",

qerror.h

@@ -48,6 +48,9 @@ QError *qobject_to_qerror(const QObject *obj);
 #define QERR_BUS_NOT_FOUND \
     "{ 'class': 'BusNotFound', 'data': { 'bus': %s } }"
 
+#define QERR_BUS_NO_HOTPLUG \
+    "{ 'class': 'BusNoHotplug', 'data': { 'bus': %s } }"
+
 #define QERR_COMMAND_NOT_FOUND \
     "{ 'class': 'CommandNotFound', 'data': { 'name': %s } }"