diff options
| author | Sen Wang <sen@ti.com> | 2026-06-30 13:31:20 -0500 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2026-07-01 19:52:36 +0100 |
| commit | 12272cb1b23e3032e5c627fb52f183a61913a88b (patch) | |
| tree | 9c7aeca47a6b5fe60739edd4b64ee36c4a8a5ab1 /sound | |
| parent | dc59e4fea9d83f03bad6bddf3fa2e52491777482 (diff) | |
| download | linux-next-12272cb1b23e3032e5c627fb52f183a61913a88b.tar.gz linux-next-12272cb1b23e3032e5c627fb52f183a61913a88b.zip | |
ASoC: codecs: tas675x: use READ_ONCE for params to be used concurrently
active_playback_dais and active_capture_dais are written atomically via
set_bit()/clear_bit() and can be read concurrently from the
fault_check_work delayed work handler.
fault_check_work already uses READ_ONCE; extend the same guard to all other
reads in tas675x_hw_params() and tas675x_mute_stream().
Fixes: 133c81f84471 ("ASoC: codecs: Add TAS67524 quad-channel audio amplifier driver")
Signed-off-by: Sen Wang <sen@ti.com>
Link: https://patch.msgid.link/20260630183126.2588322-2-sen@ti.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/codecs/tas675x.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/sound/soc/codecs/tas675x.c b/sound/soc/codecs/tas675x.c index 6f89a422f3c6..f1d2bbc85008 100644 --- a/sound/soc/codecs/tas675x.c +++ b/sound/soc/codecs/tas675x.c @@ -1133,7 +1133,7 @@ static int tas675x_hw_params(struct snd_pcm_substream *substream, * Single clock domain: SDIN and SDOUT share one SCLK/FSYNC pair, * so all active DAIs must use the same sample rate. */ - if ((tas->active_playback_dais || tas->active_capture_dais) && + if ((READ_ONCE(tas->active_playback_dais) || READ_ONCE(tas->active_capture_dais)) && tas->rate && tas->rate != rate) { dev_err(component->dev, "Rate %u conflicts with active rate %u\n", @@ -1397,14 +1397,14 @@ static int tas675x_mute_stream(struct snd_soc_dai *dai, int mute, int direction) set_bit(dai->id, &tas->active_playback_dais); /* Last playback stream */ - if (mute && !tas->active_playback_dais) { + if (mute && !READ_ONCE(tas->active_playback_dais)) { ret = tas675x_set_state_all(tas, TAS675X_STATE_SLEEP_BOTH); regmap_read(tas->regmap, TAS675X_CLK_FAULT_LATCHED_REG, &discard); return ret; } return tas675x_set_state_all(tas, - tas->active_playback_dais ? + READ_ONCE(tas->active_playback_dais) ? TAS675X_STATE_PLAY_BOTH : TAS675X_STATE_SLEEP_BOTH); } |