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usb-bus: Don't allow speed mismatch while attaching devices
author
Hans de Goede
<hdegoede@redhat.com>
Fri, 27 May 2011 12:50:39 +0000
(14:50 +0200)
committer
Gerd Hoffmann
<kraxel@redhat.com>
Thu, 23 Jun 2011 09:28:07 +0000
(11:28 +0200)
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
hw/usb-bus.c
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diff --git
a/hw/usb-bus.c
b/hw/usb-bus.c
index
fc72018
..
2abce12
100644
(file)
--- a/
hw/usb-bus.c
+++ b/
hw/usb-bus.c
@@
-200,6
+200,11
@@
static int do_attach(USBDevice *dev)
} else {
port = QTAILQ_FIRST(&bus->free);
}
+ if (!(port->speedmask & dev->speedmask)) {
+ error_report("Warning: speed mismatch trying to attach usb device %s to bus %s\n",
+ dev->product_desc, bus->qbus.name);
+ return -1;
+ }
dev->attached++;
QTAILQ_REMOVE(&bus->free, port, next);