diff options
| -rw-r--r-- | drivers/usb/serial/generic.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c index 2d3599f014e2..35cb8c0e584f 100644 --- a/drivers/usb/serial/generic.c +++ b/drivers/usb/serial/generic.c @@ -52,10 +52,12 @@ static int usb_serial_generic_calc_num_ports(struct usb_serial *serial, struct usb_serial_endpoints *epds) { struct device *dev = &serial->interface->dev; - int num_ports = epds->num_bulk_out; + int num_ports; + + num_ports = max(epds->num_bulk_in, epds->num_bulk_out); if (num_ports == 0) { - dev_err(dev, "Generic device with no bulk out, not allowed.\n"); + dev_err(dev, "device has no bulk endpoints\n"); return -ENODEV; } |