USB: iowarrior: fix NULL-deref at probe

[pandora-kernel.git] / drivers / usb / misc / iowarrior.c

diff --git a/drivers/usb/misc/iowarrior.c b/drivers/usb/misc/iowarrior.c
index 8145790..c19a219 100644 (file)
--- a/drivers/usb/misc/iowarrior.c
+++ b/drivers/usb/misc/iowarrior.c
@@ -802,6 +802,13 @@ static int iowarrior_probe(struct usb_interface *interface,
                        /* this one will match for the IOWarrior56 only */
                        dev->int_out_endpoint = endpoint;
        }
+
+       if (!dev->int_in_endpoint) {
+               dev_err(&interface->dev, "no interrupt-in endpoint found\n");
+               retval = -ENODEV;
+               goto error;
+       }
+
        /* we have to check the report_size often, so remember it in the endianess suitable for our machine */
        dev->report_size = usb_endpoint_maxp(dev->int_in_endpoint);
        if ((dev->interface->cur_altsetting->desc.bInterfaceNumber == 0) &&