USB: serial: iuu_phoenix: remove redundant variable 'error'

The variable error is initialized to 0 and is set to 1 this
value is never read as it is on an immediate return path. The
only read of error is to check it is 0 and this check is always
true at that point of the code. The variable is redundant and
can be removed.

Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Johan Hovold <johan@kernel.org>

diff --git a/drivers/usb/serial/iuu_phoenix.c b/drivers/usb/serial/iuu_phoenix.c
index 093afd67a66463ba2ceca94e69c682350ec8c643..19753611e7b08eadd2ff252c86439ed529e9656d 100644 (file)
--- a/drivers/usb/serial/iuu_phoenix.c
+++ b/drivers/usb/serial/iuu_phoenix.c
@@ -643,7 +643,6 @@ static void iuu_uart_read_callback(struct urb *urb)
        struct iuu_private *priv = usb_get_serial_port_data(port);
        unsigned long flags;
        int status = urb->status;
-       int error = 0;
        int len = 0;
        unsigned char *data = urb->transfer_buffer;
        priv->poll++;
@@ -660,12 +659,11 @@ static void iuu_uart_read_callback(struct urb *urb)
        if (urb->actual_length > 1) {
                dev_dbg(&port->dev, "%s - urb->actual_length = %i\n", __func__,
                    urb->actual_length);
-               error = 1;
                return;
        }
        /* if len > 0 call readbuf */
 
-       if (len > 0 && error == 0) {
+       if (len > 0) {
                dev_dbg(&port->dev, "%s - call read buf - len to read is %i\n",
                        __func__, len);
                status = iuu_read_buf(port, len);