[PATCH linux-next] USB: serial: ftdi_sio: remove the unneeded result variable

[cgel.zte@xxxxxxxxx]

From: Xu Panda <xu.panda@xxxxxxxxxx>

Return the value usb_control_msg() directly instead of storing
it in another redundant variable.

Reported-by: Zeal Robot <zealci@xxxxxxxxxx>
Signed-off-by: Xu Panda <xu.panda@xxxxxxxxxx>
---
 drivers/usb/serial/ftdi_sio.c | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)

diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index 0a1da579ead5..f02dcef69cb9 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -1394,7 +1394,6 @@ static int change_speed(struct tty_struct *tty, struct usb_serial_port *port)
        u16 value;
        u16 index;
        u32 index_value;
-       int rv;

        index_value = get_ftdi_divisor(tty, port);
        value = (u16)index_value;
@@ -1407,13 +1406,12 @@ static int change_speed(struct tty_struct *tty, struct usb_serial_port *port)
                index = (u16)((index << 8) | priv->interface);
        }

-       rv = usb_control_msg(port->serial->dev,
-                           usb_sndctrlpipe(port->serial->dev, 0),
-                           FTDI_SIO_SET_BAUDRATE_REQUEST,
-                           FTDI_SIO_SET_BAUDRATE_REQUEST_TYPE,
-                           value, index,
-                           NULL, 0, WDR_SHORT_TIMEOUT);
-       return rv;
+       return usb_control_msg(port->serial->dev,
+                              usb_sndctrlpipe(port->serial->dev, 0),
+                              FTDI_SIO_SET_BAUDRATE_REQUEST,
+                              FTDI_SIO_SET_BAUDRATE_REQUEST_TYPE,
+                              value, index,
+                              NULL, 0, WDR_SHORT_TIMEOUT);
 }

 static int write_latency_timer(struct usb_serial_port *port)
-- 
2.15.2