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-rw-r--r--hw/usb/hcd-ehci.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/hw/usb/hcd-ehci.c b/hw/usb/hcd-ehci.c
index 73090e01ad..604912cb3e 100644
--- a/hw/usb/hcd-ehci.c
+++ b/hw/usb/hcd-ehci.c
@@ -2483,6 +2483,11 @@ void usb_ehci_realize(EHCIState *s, DeviceState *dev, Error **errp)
NB_PORTS);
return;
}
+ if (s->maxframes < 8 || s->maxframes > 512) {
+ error_setg(errp, "maxframes %d out if range (8 .. 512)",
+ s->maxframes);
+ return;
+ }
usb_bus_new(&s->bus, sizeof(s->bus), s->companion_enable ?
&ehci_bus_ops_companion : &ehci_bus_ops_standalone, dev);