staging: comedi: das16m1: init local variables when declared

For aesthetics, init the comedi_subdevice, comedi_async, and comedi_cmd
pointers when the local variables are declared.
Signed-off-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: NIan Abbott <abbotti@mev.co.uk>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/comedi/drivers/das16m1.c

@@ -373,16 +373,12 @@ static int das16m1_do_insn_bits(struct comedi_device *dev,
 static void das16m1_handler(struct comedi_device *dev, unsigned int status)
 {
 	struct das16m1_private_struct *devpriv = dev->private;
-	struct comedi_subdevice *s;
-	struct comedi_async *async;
-	struct comedi_cmd *cmd;
+	struct comedi_subdevice *s = dev->read_subdev;
+	struct comedi_async *async = s->async;
+	struct comedi_cmd *cmd = &async->cmd;
 	u16 num_samples;
 	u16 hw_counter;
 
-	s = dev->read_subdev;
-	async = s->async;
-	cmd = &async->cmd;
-
 	/* figure out how many samples are in fifo */
 	hw_counter = comedi_8254_read(devpriv->counter, 1);
 	/*