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| author |   Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> | 2019-12-17 18:05:17 -0600 |
|---|---|---|
| committer |   Mark Brown <broonie@kernel.org> | 2019-12-18 19:49:42 +0000 |
| commit | 921162c81a089aa2f442103290f1af9ba281fc9f (patch) | |
| tree | fa47aaed7bcc157b7d109fc3748b25e1757e0087 /sound/soc/soc-core.c | |
| parent | ASoC: SOF: fix fault at driver unload after failed probe (diff) | |
| download | linux-dev-921162c81a089aa2f442103290f1af9ba281fc9f.tar.xz linux-dev-921162c81a089aa2f442103290f1af9ba281fc9f.zip | |
ASoC: SOF: Intel: hda: hda-dai: fix oops on hda_link .hw_free
When the PCM_PARAM IPC fails while configuring the FE, the kernel
oopses in the HDaudio link DMA .hw_free operation. The root cause is a
NULL dma_data since the BE .hw_params was never called by the SOC
core.
This error can also happen if the HDaudio link DMA configuration IPC
fails in the BE .hw_params.
This patches makes sure the dma_data is properly saved in .hw_params,
and tested before being use in hw_free.
GitHub issue: https://github.com/thesofproject/linux/issues/1417
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20191218000518.5830-3-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/soc-core.c')
0 files changed, 0 insertions, 0 deletions