diff options
| author | Hans de Goede <hdegoede@redhat.com> | 2011-05-27 14:46:27 +0200 |
|---|---|---|
| committer | Gerd Hoffmann <kraxel@redhat.com> | 2011-06-23 11:28:06 +0200 |
| commit | ee210d6390761bb0fd6febe0fb8f94ee0dcba0db (patch) | |
| tree | 7e345f264d62ca160cc021cef33de4066b9ff4c9 | |
| parent | adddecb169c63913786dcf3a5879e89a300dbb20 (diff) | |
usb-bus: Don't allow attaching a device to a bus with no free ports
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
| -rw-r--r-- | hw/usb-bus.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/hw/usb-bus.c b/hw/usb-bus.c index 480956dfcf..0a49921c0c 100644 --- a/hw/usb-bus.c +++ b/hw/usb-bus.c @@ -181,6 +181,11 @@ static void do_attach(USBDevice *dev) dev->product_desc); return; } + if (bus->nfree == 0) { + fprintf(stderr, "Warning: tried to attach usb device %s to a bus with no free ports\n", + dev->product_desc); + return; + } if (dev->port_path) { QTAILQ_FOREACH(port, &bus->free, next) { if (strcmp(port->path, dev->port_path) == 0) { |