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authorPierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>2022-04-21 15:31:59 -0500
committerMark Brown <broonie@kernel.org>2022-04-25 13:58:35 +0100
commit722cbbfaed2a290b1de1fb0ec4ee9a15ec240f7c (patch)
treea21488759d7fc521c72ecabeeb2d142c2824d405 /tools/perf/scripts/python/syscall-counts-by-pid.py
parent23b1944e46ab4cd7cbd4ef999f814fc6c6f2eb88 (diff)
ASoC: SOF: Intel: hda-dai: reset dma_data and release stream
The sequences are missing a call to snd_soc_dai_set_dma_data() when the stream is cleared, as well as a release of the stream, and tests to avoid pointer dereferences. This fixes an underflow issue in a corner case with two streams paused before a suspend-resume cycle. After resume, the pause_release of the last stream causes an underflow due to an invalid sequence. This problem probably existed since the beginning and is only see with prototypes of a 'deep-buffer' capability, which depends on additional ASoC fixes, so there's is no Fixes: tag and no real requirement to backport this patch. BugLink: https://github.com/thesofproject/linux/issues/3151 Co-developed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com> Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com> Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Rander Wang <rander.wang@intel.com> Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com> Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com> Link: https://lore.kernel.org/r/20220421203201.1550328-13-pierre-louis.bossart@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
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