ASoC: Don't tell applications about msbits unless we're ignoring input

On the off chance that an application both pays attention and gets
confused.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

1 files changed, 5 insertions, 3 deletions

diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index 8bb17937d59a..326890148a26 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -85,9 +85,11 @@ static void soc_pcm_apply_msb(struct snd_pcm_substream *substream,
                 return;
 
         for (i = 0; i < ARRAY_SIZE(sample_sizes); i++) {
-                ret = snd_pcm_hw_constraint_msbits(substream->runtime,
-                                                   0, sample_sizes[i],
-                                                   bits);
+                if (bits >= sample_sizes[i])
+                        continue;
+
+                ret = snd_pcm_hw_constraint_msbits(substream->runtime, 0,
+                                                   sample_sizes[i], bits);
                 if (ret != 0)
                         dev_warn(dai->dev,
                                  "Failed to set MSB %d/%d: %d\n",