linux-kernel - [PATCH usb-linus] USB: keyspan: fix typo causing GPF on open

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Date:	Sat, 10 Nov 2012 10:13:42 +0100
From:	Bjørn Mork <bjorn@...k.no>
To:	Richard <richjunk@...bell.net>
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
	Bjørn Mork <bjorn@...k.no>,
	<stable@...r.kernel.org>, Johan Hovold <jhovold@...il.com>
Subject: [PATCH usb-linus] USB: keyspan: fix typo causing GPF on open

Commit f79b2d0f (USB: keyspan: fix NULL-pointer dereferences and
memory leaks) had a small typo which made the driver use wrong
offsets when mapping serial port private data.  This results in
in a GPF when the port is opened.

Reported-by: Richard <richjunk@...bell.net>
Cc: <stable@...r.kernel.org>
Cc: Johan Hovold <jhovold@...il.com>
Signed-off-by: Bjørn Mork <bjorn@...k.no>
---
Hello Richard,

I wonder if you are able to test and verify this?  I do not guarantee
that there aren't other issues around, but this small typo looked like
an obvious killer...

Bjørn

 drivers/usb/serial/keyspan.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/usb/serial/keyspan.c b/drivers/usb/serial/keyspan.c
index 7179b0c..cff8dd5 100644
--- a/drivers/usb/serial/keyspan.c
+++ b/drivers/usb/serial/keyspan.c
@@ -2430,7 +2430,7 @@ static void keyspan_release(struct usb_serial *serial)
 static int keyspan_port_probe(struct usb_serial_port *port)
 {
 	struct usb_serial *serial = port->serial;
-	struct keyspan_port_private *s_priv;
+	struct keyspan_serial_private *s_priv;
 	struct keyspan_port_private *p_priv;
 	const struct keyspan_device_details *d_details;
 	struct callbacks *cback;
@@ -2445,7 +2445,6 @@ static int keyspan_port_probe(struct usb_serial_port *port)
 	if (!p_priv)
 		return -ENOMEM;
 
-	s_priv = usb_get_serial_data(port->serial);
 	p_priv->device_details = d_details;
 
 	/* Setup values for the various callback routines */
-- 
1.7.10.4

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