staging: comedi: addi_apci_3120: remove test for DO subdevice

The boards supported by this driver all have digital outputs.
Remove the test for it.
Signed-off-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/comedi/drivers/addi_apci_3120.c

@@ -259,24 +259,20 @@ static int apci3120_attach_pci(struct comedi_device *dev,
 	}
 	/*  Allocate and Initialise DO Subdevice Structures */
 	s = &dev->subdevices[3];
-	if (this_board->i_NbrDoChannel) {
-		s->type = COMEDI_SUBD_DO;
-		s->subdev_flags =
-			SDF_READABLE | SDF_WRITEABLE | SDF_GROUND | SDF_COMMON;
-		s->n_chan = this_board->i_NbrDoChannel;
-		s->maxdata = this_board->i_DoMaxdata;
-		s->len_chanlist = this_board->i_NbrDoChannel;
-		s->range_table = &range_digital;
-		s->io_bits = 0xf;	/* all bits output */
+	s->type = COMEDI_SUBD_DO;
+	s->subdev_flags =
+		SDF_READABLE | SDF_WRITEABLE | SDF_GROUND | SDF_COMMON;
+	s->n_chan = this_board->i_NbrDoChannel;
+	s->maxdata = this_board->i_DoMaxdata;
+	s->len_chanlist = this_board->i_NbrDoChannel;
+	s->range_table = &range_digital;
+	s->io_bits = 0xf;	/* all bits output */
 
-		/* insn_config - for digital output memory */
-		s->insn_config = this_board->do_config;
-		s->insn_write = this_board->do_write;
-		s->insn_bits = this_board->do_bits;
-		s->insn_read = this_board->do_read;
-	} else {
-		s->type = COMEDI_SUBD_UNUSED;
-	}
+	/* insn_config - for digital output memory */
+	s->insn_config = this_board->do_config;
+	s->insn_write = this_board->do_write;
+	s->insn_bits = this_board->do_bits;
+	s->insn_read = this_board->do_read;
 
 	/*  Allocate and Initialise Timer Subdevice Structures */
 	s = &dev->subdevices[4];