staging: comedi: ni_mio_common: remove deadcode in ni_ai_insn_config()

The previous mask by 0xf ensures that calib_source will not be > 0xf.
Remove the dead code.

Reported by: coverity
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 c42ba22b91d29bf4356cc43c45cf0c779ada9954..3c9d747fce8b947ab041d39b5b95547ce69ea824 100644 (file)
--- a/drivers/staging/comedi/drivers/ni_mio_common.c
+++ b/drivers/staging/comedi/drivers/ni_mio_common.c
@@ -2732,9 +2732,6 @@ static int ni_ai_insn_config(struct comedi_device *dev,
 
                        calib_source = data[1] & 0xf;
 
-                       if (calib_source > 0xF)
-                               return -EINVAL;
-
                        devpriv->ai_calib_source = calib_source;
                        ni_writew(dev, calib_source, Calibration_Channel_6143);
                } else {