error: New QERR_DEVICE_MULTIPLE_BUSSES

qerror.c

@@ -56,6 +56,10 @@ static const QErrorStringTable qerror_table[] = {
         .error_fmt = QERR_DEVICE_LOCKED,
         .desc      = "Device '%(device)' is locked",
     },
+    {
+        .error_fmt = QERR_DEVICE_MULTIPLE_BUSSES,
+        .desc      = "Device '%(device)' has multiple child busses",
+    },
     {
         .error_fmt = QERR_DEVICE_NOT_ACTIVE,
         .desc      = "Device '%(device)' has not been activated by the guest",

qerror.h

@@ -54,6 +54,9 @@ QError *qobject_to_qerror(const QObject *obj);
 #define QERR_DEVICE_LOCKED \
     "{ 'class': 'DeviceLocked', 'data': { 'device': %s } }"
 
+#define QERR_DEVICE_MULTIPLE_BUSSES \
+    "{ 'class': 'DeviceMultipleBusses', 'data': { 'device': %s } }"
+
 #define QERR_DEVICE_NOT_ACTIVE \
     "{ 'class': 'DeviceNotActive', 'data': { 'device': %s } }"