From: Johan Hovold <jhovold@gmail.com>
Date: Tue, 4 Jun 2013 16:50:29 +0000 (+0200)
Subject: USB: keyspan: fix bogus array index
X-Git-Tag: v3.9.6~65
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=29594cdbe04429fcf23fc66e65be0450e0f46a71;p=thirdparty%2Fkernel%2Fstable.git

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>
---

diff --git a/drivers/usb/serial/keyspan.c b/drivers/usb/serial/keyspan.c
index 1fd1935c8316f..34ed26e9d8cb8 100644
--- a/drivers/usb/serial/keyspan.c
+++ b/drivers/usb/serial/keyspan.c
@@ -1594,7 +1594,7 @@ 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;
 
 	dev_dbg(&port->dev, "%s - endpoint %d\n", __func__, usb_pipeendpoint(this_urb->pipe));