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-rw-r--r--sound/spi/at73c213.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/sound/spi/at73c213.c b/sound/spi/at73c213.c
index aa57115..09802e8 100644
--- 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;
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