staging: comedi: pcmda12: return 0 for successful attach

Return 0 instead of 1 to indicate a successful attach.
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>

drivers/staging/comedi/drivers/pcmda12.c

@@ -159,7 +159,7 @@ static int pcmda12_attach(struct comedi_device *dev,
 
 	pcmda12_ao_reset(dev, s);
 
-	return 1;
+	return 0;
 }
 
 static struct comedi_driver pcmda12_driver = {