[PATCH] Correct bit mask for ADC result according to ADC's resolution.

[Wilfried Wessner <wilfried.wessner@xxxxxxxxx>]

Signed-off-by: Wilfried Wessner <wilfried.wessner@xxxxxxxxx>
---
 drivers/iio/adc/ad7949.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/adc/ad7949.c b/drivers/iio/adc/ad7949.c
index 5d597e5050f6..a5b4858cb6dc 100644
--- a/drivers/iio/adc/ad7949.c
+++ b/drivers/iio/adc/ad7949.c
@@ -91,7 +91,7 @@ static int ad7949_spi_read_channel(struct ad7949_adc_chip *ad7949_adc, int *val,
 	int ret;
 	int i;
 	int bits_per_word = ad7949_adc->resolution;
-	int mask = GENMASK(ad7949_adc->resolution, 0);
+	int mask = GENMASK((ad7949_adc->resolution-1), 0);
 	struct spi_message msg;
 	struct spi_transfer tx[] = {
 		{
-- 
2.25.1