[alsa-devel] [PATCH 0/2] Fixes for SOF module unload/reload

[Ranjani Sridharan]

A recent commit "ALSA: hdac: fix memory release for SST and SOF drivers"
removed the kfree call for the hdac device in
snd_hdac_ext_bus_device_exit(). This requires that the SOF driver
also make the hdac_device and hdac_hda_priv device-managed so
that they can be freed when the SOF module in unloaded. The first
patch takes care of this change.

Additionally, because of the above change, the hda_codec is
device-managed and freeing it in snd_hda_codec_dev_release() leads
to kernel panic with module unload/reload stress tests. The second
patch includes the change to avoid freeing hda_codec for ASoC driver.

More details for the module unload/reload test failures can be found
here: https://github.com/thesofproject/linux/issues/966

Ranjani Sridharan (2):
  ASoC: SOF: Intel: hda: Make hdac_device device-managed
  ASoC: hda: don't free hda_codec for HDA_DEV_ASOC type

 sound/pci/hda/hda_codec.c       | 8 +++++++-
 sound/soc/sof/intel/hda-codec.c | 6 ++----
 2 files changed, 9 insertions(+), 5 deletions(-)

-- 
2.17.1