6.17-stable review patch. If anyone has any objections, please let me know.
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From: Cezary Rojewski cezary.rojewski@intel.com
[ Upstream commit 845f716dc5f354c719f6fda35048b6c2eca99331 ]
avs_dai_fe_shutdown() handles the shutdown procedure for HOST HDAudio stream while period-elapsed work services its IRQs. As the former frees the DAI's private context, these two operations shall be synchronized to avoid slab-use-after-free or worse errors.
Fixes: 0dbb186c3510 ("ASoC: Intel: avs: Update stream status in a separate thread") Signed-off-by: Cezary Rojewski cezary.rojewski@intel.com Link: https://patch.msgid.link/20251023092348.3119313-3-cezary.rojewski@intel.com Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- sound/soc/intel/avs/pcm.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/sound/soc/intel/avs/pcm.c b/sound/soc/intel/avs/pcm.c index 0d7862910eedd..0180cf7d5fe15 100644 --- a/sound/soc/intel/avs/pcm.c +++ b/sound/soc/intel/avs/pcm.c @@ -651,6 +651,7 @@ static void avs_dai_fe_shutdown(struct snd_pcm_substream *substream, struct snd_
data = snd_soc_dai_get_dma_data(dai, substream);
+ disable_work_sync(&data->period_elapsed_work); snd_hdac_ext_stream_release(data->host_stream, HDAC_EXT_STREAM_TYPE_HOST); avs_dai_shutdown(substream, dai); }