USB: serial: visor: fix crash on detecting device without write_urbs
[pandora-kernel.git] / drivers / usb / serial / visor.c
index 39678d5..ea74788 100644 (file)
@@ -640,8 +640,10 @@ static int clie_5_attach(struct usb_serial *serial)
         */
 
        /* some sanity check */
-       if (serial->num_ports < 2)
-               return -1;
+       if (serial->num_bulk_out < 2) {
+               dev_err(&serial->interface->dev, "missing bulk out endpoints\n");
+               return -ENODEV;
+       }
 
        /* port 0 now uses the modified endpoint Address */
        port = serial->port[0];