bci: some more code for testing

[pandora-kernel.git] / sound / spi / at73c213.c

diff --git a/sound/spi/at73c213.c b/sound/spi/at73c213.c
index aa57115..09802e8 100644 (file)
--- a/sound/spi/at73c213.c
+++ b/sound/spi/at73c213.c
@@ -210,7 +210,13 @@ static int snd_at73c213_pcm_open(struct snd_pcm_substream *substream)
 {
        struct snd_at73c213 *chip = snd_pcm_substream_chip(substream);
        struct snd_pcm_runtime *runtime = substream->runtime;
+       int err;
 
+       /* ensure buffer_size is a multiple of period_size */
+       err = snd_pcm_hw_constraint_integer(runtime,
+                                       SNDRV_PCM_HW_PARAM_PERIODS);
+       if (err < 0)
+               return err;
        snd_at73c213_playback_hw.rate_min = chip->bitrate;
        snd_at73c213_playback_hw.rate_max = chip->bitrate;
        runtime->hw = snd_at73c213_playback_hw;