ASoC: ad1836: Reject unsupported bit sizes

Signed-off-by: Mark Brown <broonie@linaro.org>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>

diff --git a/sound/soc/codecs/ad1836.c b/sound/soc/codecs/ad1836.c
index 9a92b7962f41b67e3ba8461d1a88c584ef4822b0..d7c983862cf0a4ca19bb3db19652f5e2c579900b 100644 (file)
--- a/sound/soc/codecs/ad1836.c
+++ b/sound/soc/codecs/ad1836.c
@@ -179,6 +179,8 @@ static int ad1836_hw_params(struct snd_pcm_substream *substream,
        case SNDRV_PCM_FORMAT_S32_LE:
                word_len = AD1836_WORD_LEN_24;
                break;
+       default:
+               return -EINVAL;
        }
 
        regmap_update_bits(ad1836->regmap, AD1836_DAC_CTRL1,