diff --git a/drivers/staging/comedi/drivers/ni_6527.c b/drivers/staging/comedi/drivers/ni_6527.c
index 99e744172f4d..f1a45cf7342a 100644
--- a/drivers/staging/comedi/drivers/ni_6527.c
+++ b/drivers/staging/comedi/drivers/ni_6527.c
@@ -195,7 +195,9 @@ static irqreturn_t ni6527_interrupt(int irq, void *d)
 		return IRQ_NONE;
 
 	if (status & NI6527_STATUS_EDGE) {
-		comedi_buf_write_samples(s, &s->state, 1);
+		unsigned short val = 0;
+
+		comedi_buf_write_samples(s, &val, 1);
 		comedi_handle_events(dev, s);
 	}