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USB: symbolserial: Use usb_get_serial_port_data 

commit 951d3793bbfc0a441d791d820183aa3085c83ea9 upstream.

The driver used usb_get_serial_data(port->serial) which compiled but resulted
in a NULL pointer being returned (and subsequently used). I did not go deeper
into this but I guess this is a regression.

Signed-off-by: Philipp Hachtmann <hachti@hachti.de>
Fixes: a85796ee51 ("USB: symbolserial: move private-data allocation to
port_probe")
Acked-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Philipp Hachtmann 2015-08-17 17:31:46 +02:00 committed by Greg Kroah-Hartman
parent ae7a543844
commit bcbc0b4c57
1 changed files with 3 additions and 3 deletions
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6
drivers/usb/serial/symbolserial.c
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@ -97,7 +97,7 @@ exit:
static int symbol_open(struct tty_struct *tty, struct usb_serial_port *port)
{
struct symbol_private *priv = usb_get_serial_data(port->serial);
struct symbol_private *priv = usb_get_serial_port_data(port);
unsigned long flags;
int result = 0;
@ -123,7 +123,7 @@ static void symbol_close(struct usb_serial_port *port)
static void symbol_throttle(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
struct symbol_private *priv = usb_get_serial_data(port->serial);
struct symbol_private *priv = usb_get_serial_port_data(port);
spin_lock_irq(&priv->lock);
priv->throttled = true;
@ -133,7 +133,7 @@ static void symbol_throttle(struct tty_struct *tty)
static void symbol_unthrottle(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
struct symbol_private *priv = usb_get_serial_data(port->serial);
struct symbol_private *priv = usb_get_serial_port_data(port);
int result;
bool was_throttled;