diff --git a/drivers/staging/comedi/drivers/das16.c b/drivers/staging/comedi/drivers/das16.c
index 577e2a842845..96c081b48d07 100644
--- a/drivers/staging/comedi/drivers/das16.c
+++ b/drivers/staging/comedi/drivers/das16.c
@@ -174,9 +174,6 @@ www.measurementcomputing.com
 
 */
 
-/*  size in bytes of a sample from board */
-static const int sample_size = 2;
-
 #define DAS16_TRIG		0
 #define DAS16_AI_LSB		0
 #define DAS16_AI_MSB		1