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: a85796ee5149 ("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>
diff --git a/drivers/usb/serial/symbolserial.c b/drivers/usb/serial/symbolserial.c
index 9b16489..1e2d86d 100644
--- a/drivers/usb/serial/symbolserial.c
+++ b/drivers/usb/serial/symbolserial.c
@@ -97,7 +97,7 @@
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_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_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;
