From c30c8f9d51ec24b36e2c65a6307a5c8cbc5a0ebc Mon Sep 17 00:00:00 2001 From: Cezary Rojewski Date: Wed, 16 Nov 2022 12:55:49 +0100 Subject: [PATCH] ASoC: Intel: avs: Lock substream before snd_pcm_stop() snd_pcm_stop() shall be called with stream lock held to prevent any races between nonatomic streaming operations. Fixes: 2f1f570cd730 ("ASoC: Intel: avs: Coredump and recovery flow") Signed-off-by: Cezary Rojewski Link: https://lore.kernel.org/r/20221116115550.1100398-2-cezary.rojewski@intel.com Signed-off-by: Mark Brown --- sound/soc/intel/avs/ipc.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/sound/soc/intel/avs/ipc.c b/sound/soc/intel/avs/ipc.c index 152f8d0..af8a260 100644 --- a/sound/soc/intel/avs/ipc.c +++ b/sound/soc/intel/avs/ipc.c @@ -123,7 +123,10 @@ static void avs_dsp_recovery(struct avs_dev *adev) if (!substream || !substream->runtime) continue; + /* No need for _irq() as we are in nonatomic context. */ + snd_pcm_stream_lock(substream); snd_pcm_stop(substream, SNDRV_PCM_STATE_DISCONNECTED); + snd_pcm_stream_unlock(substream); } } } -- 2.7.4