USB: serial: keyspan_pda: verify endpoints at probe

[pandora-kernel.git] / drivers / usb / serial / keyspan_pda.c

diff --git a/drivers/usb/serial/keyspan_pda.c b/drivers/usb/serial/keyspan_pda.c
index 661a1a2..65a0906 100644 (file)
--- a/drivers/usb/serial/keyspan_pda.c
+++ b/drivers/usb/serial/keyspan_pda.c
@@ -806,9 +806,15 @@ MODULE_FIRMWARE("keyspan_pda/xircom_pgs.fw");
 
 static int keyspan_pda_startup(struct usb_serial *serial)
 {
-
+       unsigned char num_ports = serial->num_ports;
        struct keyspan_pda_private *priv;
 
+       if (serial->num_bulk_out < num_ports ||
+                       serial->num_interrupt_in < num_ports) {
+               dev_err(&serial->interface->dev, "missing endpoints\n");
+               return -ENODEV;
+       }
+
        /* allocate the private data structures for all ports. Well, for all
           one ports. */