diff --git a/drivers/input/joystick/adc-joystick.c b/drivers/input/joystick/adc-joystick.c
index b6b46631ec27af..af7d17eb86ae85 100644
--- a/drivers/input/joystick/adc-joystick.c
+++ b/drivers/input/joystick/adc-joystick.c
@@ -146,7 +146,8 @@ static int *adc_joystick_get_chan_offsets(struct iio_channel *chans, int count)
 		ch = chans[idx].channel;
 		si = ch->scan_index;
 
-		if (si < 0 || !test_bit(si, indio_dev->active_scan_mask)) {
+		if (si < 0 || !indio_dev->active_scan_mask ||
+		    !test_bit(si, indio_dev->active_scan_mask)) {
 			offsets[idx] = -1;
 			continue;
 		}