diff options
| author | Oder Chiou <oder_chiou@realtek.com> | 2017-11-08 14:21:47 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2017-11-08 14:26:56 +0300 |
| commit | c4a71ff78e668a75a4a3cfd9ebbfbd5cbe8da5fb (patch) | |
| tree | 8a8b9e7d10cf4e2532a0892b8e0cb0715d112ec3 /sound/soc/codecs/rt5514-spi.c | |
| parent | 28aef24d726f8d503fde24ccf8a14b214355cfb5 (diff) | |
| download | linux-c4a71ff78e668a75a4a3cfd9ebbfbd5cbe8da5fb.tar.xz | |
ASoC: rt5514-spi: Let the buf_size to align with period_bytes
The patch lets the buf_size to align with period_bytes to prevent the
buffer reading over the real size of the DSP buffer and also avoid to
calculate the wrong size of remaining data.
Signed-off-by: Oder Chiou <oder_chiou@realtek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/codecs/rt5514-spi.c')
| -rw-r--r-- | sound/soc/codecs/rt5514-spi.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/sound/soc/codecs/rt5514-spi.c b/sound/soc/codecs/rt5514-spi.c index 12f2ecf3a4fe..0896817ffc3f 100644 --- a/sound/soc/codecs/rt5514-spi.c +++ b/sound/soc/codecs/rt5514-spi.c @@ -147,8 +147,13 @@ done: static void rt5514_schedule_copy(struct rt5514_dsp *rt5514_dsp) { + size_t period_bytes; u8 buf[8]; + if (!rt5514_dsp->substream) + return; + + period_bytes = snd_pcm_lib_period_bytes(rt5514_dsp->substream); rt5514_dsp->get_size = 0; /** @@ -176,6 +181,10 @@ static void rt5514_schedule_copy(struct rt5514_dsp *rt5514_dsp) rt5514_dsp->buf_size = rt5514_dsp->buf_limit - rt5514_dsp->buf_base; + if (rt5514_dsp->buf_size % period_bytes) + rt5514_dsp->buf_size = (rt5514_dsp->buf_size / period_bytes) * + period_bytes; + if (rt5514_dsp->buf_base && rt5514_dsp->buf_limit && rt5514_dsp->buf_rp && rt5514_dsp->buf_size) schedule_delayed_work(&rt5514_dsp->copy_work, 0); |