Message ID | 1354574681-28954-9-git-send-email-mdroth@linux.vnet.ibm.com |
---|---|
State | New |
Headers | show |
diff --git a/hw/usb/bus.c b/hw/usb/bus.c index b649360..1f73a52 100644 --- a/hw/usb/bus.c +++ b/hw/usb/bus.c @@ -585,6 +585,13 @@ USBDevice *usbdevice_create(const char *cmdline) return NULL; } + if (!bus) { + error_report("Error: no usb bus to attach usbdevice %s, " + "please try -machine usb=on and check that " + "the machine model supports USB", driver); + return NULL; + } + if (!f->usbdevice_init) { if (*params) { error_report("usbdevice %s accepts no params", driver);