staging: comedi: ni_mio_common: remove BUG() check in ni_cdio_cmd()

The cmd->scan_begin_src was validated in ni_cdio_cmdtest() and can only
be TRIG_EXT. Remove the switch statement and unnecessary BUG() check.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/comedi/drivers/ni_mio_common.c b/drivers/staging/comedi/drivers/ni_mio_common.c
index acba13847c2992faae104936c0b8a08c9e300bb2..cbfbfa5ab7525f773c6be5750adcf33365333fca 100644 (file)
--- a/drivers/staging/comedi/drivers/ni_mio_common.c
+++ b/drivers/staging/comedi/drivers/ni_mio_common.c
@@ -3460,16 +3460,8 @@ static int ni_cdio_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
        int retval;
 
        ni_writel(dev, NI_M_CDO_CMD_RESET, NI_M_CDIO_CMD_REG);
-       switch (cmd->scan_begin_src) {
-       case TRIG_EXT:
-               cdo_mode_bits |=
-                   CR_CHAN(cmd->scan_begin_arg) &
-                   CDO_Sample_Source_Select_Mask;
-               break;
-       default:
-               BUG();
-               break;
-       }
+       cdo_mode_bits |= CR_CHAN(cmd->scan_begin_arg) &
+                        CDO_Sample_Source_Select_Mask;
        if (cmd->scan_begin_arg & CR_INVERT)
                cdo_mode_bits |= CDO_Polarity_Bit;
        ni_writel(dev, cdo_mode_bits, NI_M_CDO_MODE_REG);