staging: comedi: drivers: usbduxsigma: Removed variables that is never used

Variable was assigned a value that was never used.
I have also removed all the code that thereby serves no purpose.

This was found using a static code analysis program called cppcheck

Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: Bernd Porr <mail@berndporr.me.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/comedi/drivers/usbduxsigma.c b/drivers/staging/comedi/drivers/usbduxsigma.c
index 378c44923c57e91b89a8848dd9ace7812fa5173a..394969b7458c19df240d52cb1ad83bd2b61e1c7b 100644 (file)
--- a/drivers/staging/comedi/drivers/usbduxsigma.c
+++ b/drivers/staging/comedi/drivers/usbduxsigma.c
@@ -214,7 +214,6 @@ static void usbduxsigma_ai_handle_urb(struct comedi_device *dev,
        struct usbduxsigma_private *devpriv = dev->private;
        struct comedi_async *async = s->async;
        struct comedi_cmd *cmd = &async->cmd;
-       unsigned int dio_state;
        uint32_t val;
        int ret;
        int i;
@@ -223,9 +222,6 @@ static void usbduxsigma_ai_handle_urb(struct comedi_device *dev,
        if (devpriv->ai_counter == 0) {
                devpriv->ai_counter = devpriv->ai_timer;
 
-               /* get the state of the dio pins to allow external trigger */
-               dio_state = be32_to_cpu(devpriv->in_buf[0]);
-
                /* get the data from the USB bus and hand it over to comedi */
                for (i = 0; i < cmd->chanlist_len; i++) {
                        /* transfer data, note first byte is the DIO state */