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Pierre-Louis Bossart authored
The HDaudio stream allocation is done first, and in a second step the LOSIDV parameter is programmed for the multi-link used by a codec. This leads to a possible stream_tag leak, e.g. if a DisplayAudio link is not used. This would happen when a non-Intel graphics card is used and userspace unconditionally uses the Intel Display Audio PCMs without checking if they are connected to a receiver with jack controls. We should first check that there is a valid multi-link entry to configure before allocating a stream_tag. This change aligns the dma_assign and dma_cleanup phases. Complements: b0cd60f3 ("ALSA/ASoC: hda: clarify bus_get_link() and bus_link_get() helpers") Link: https://github.com/thesofproject/linux/issues/4151Signed-off-by:
Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by:
Ranjani Sridharan <ranjani.sridharan@linux.intel.com> Reviewed-by:
Rander Wang <rander.wang@intel.com> Reviewed-by:
Bard Liao <yung-chuan.liao@linux.intel.com> Signed-off-by:
Peter Ujfalusi <peter.ujfalusi@linux.intel.com> Link: https://lore.kernel.org/r/20230216162340.19480-1-peter.ujfalusi@linux.intel.comSigned-off-by:
Mark Brown <broonie@kernel.org>
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