USB: keyspan: fix bogus array index

commit a07088098a650267b2eda689538133a324b9523f upstream.

The outcont_endpoints array was indexed using the port minor number
(which can be greater than the array size) rather than the device port
number.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

diff --git a/drivers/usb/serial/keyspan.c b/drivers/usb/serial/keyspan.c
index a442352d7b61ed59e195132c4c579680554d3ec0..4f415e28b2eb5c57228c4ddf27fb8e37b886ffe8 100644 (file)
--- a/drivers/usb/serial/keyspan.c
+++ b/drivers/usb/serial/keyspan.c
@@ -1833,7 +1833,7 @@ static int keyspan_usa26_send_setup(struct usb_serial *serial,
        d_details = s_priv->device_details;
        device_port = port->number - port->serial->minor;
 
-       outcont_urb = d_details->outcont_endpoints[port->number];
+       outcont_urb = d_details->outcont_endpoints[device_port];
        this_urb = p_priv->outcont_urb;
 
        dbg("%s - endpoint %d", __func__, usb_pipeendpoint(this_urb->pipe));