diff --git a/drivers/iio/adc/at91_adc.c b/drivers/iio/adc/at91_adc.c
index 920dd9ffd27a..8942d15b3978 100644
--- a/drivers/iio/adc/at91_adc.c
+++ b/drivers/iio/adc/at91_adc.c
@@ -304,7 +304,7 @@ static void handle_adc_eoc_trigger(int irq, struct iio_dev *idev)
 	}
 }
 
-static int at91_ts_sample(struct iio_dev *idev)
+static void at91_ts_sample(struct iio_dev *idev)
 {
 	struct at91_adc_state *st = iio_priv(idev);
 	unsigned int xscale, yscale, reg, z1, z2;
@@ -323,7 +323,7 @@ static int at91_ts_sample(struct iio_dev *idev)
 	xscale = (reg >> 16) & xyz_mask;
 	if (xscale == 0) {
 		dev_err(&idev->dev, "Error: xscale == 0!\n");
-		return -1;
+		return;
 	}
 	x /= xscale;
 
@@ -334,7 +334,7 @@ static int at91_ts_sample(struct iio_dev *idev)
 	yscale = (reg >> 16) & xyz_mask;
 	if (yscale == 0) {
 		dev_err(&idev->dev, "Error: yscale == 0!\n");
-		return -1;
+		return;
 	}
 	y /= yscale;
 
@@ -363,8 +363,6 @@ static int at91_ts_sample(struct iio_dev *idev)
 	} else {
 		dev_dbg(&idev->dev, "pressure too low: not reporting\n");
 	}
-
-	return 0;
 }
 
 static irqreturn_t at91_adc_rl_interrupt(int irq, void *private)