[alsa-devel] [PATCH 0/2] ASoC: fix hw_params/hw_free validity checks

While working on a codec, I have found an odd situation. The hw_params callback which was provided by the codec dai was not called as expected. However, the hw_free callback was called, even if hw_params was skipped.

After debugging, I found out that the dai was considered invalid because it did not specify any rates, only rate_min and rate_max. That's a first problem.

If a codec dai is considered invalid, hw_free should probably not be called either, that's a 2nd issue.

This patchset is meant to solve both issues.

Jerome Brunet (2): ASoC: fix valid stream condition ASoC: skip hw_free on codec dai for which the stream is invalid

sound/soc/soc-pcm.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-)