Audio modules fixes#10752
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lgirdwood wants to merge 3 commits intothesofproject:mainfrom
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Properly track allocation state in the ASRC component lifecycle to prevent double-free of heap memory during module teardown in ZTest environments. Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Add input validation for the frame_shift configuration field in mfcc_setup(). A zero or negative value would cause a division by zero during STFT processing. Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Add null checks for hardware device pointers that may not be available when running in ZTest environments without real hardware. Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
lgirdwood
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dbaluta,
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lbetlej,
mmaka1 and
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Pull request overview
This PR addresses a few robustness issues in the audio modules that were surfaced by the audio ztest unit tests, primarily by adding missing validation and making teardown paths safer.
Changes:
- Add Zephyr
device_is_ready()gating to mic privacy manager initialization and guard policy queries when the device isn’t initialized. - Add MFCC configuration validation to reject non-positive
frame_shift. - Harden ASRC free/reset paths by adding NULL checks, clearing pointers after freeing, and resetting module private data.
Reviewed changes
Copilot reviewed 3 out of 3 changed files in this pull request and generated 2 comments.
| File | Description |
|---|---|
src/audio/mic_privacy_manager/mic_privacy_manager_intel.c |
Add device readiness check during init and a guard in get_policy() to avoid dereferencing an uninitialized device pointer. |
src/audio/mfcc/mfcc_setup.c |
Add basic validation for frame_shift to prevent invalid hop sizes. |
src/audio/asrc/asrc.c |
Make free()/reset() more defensive by checking allocations before releasing and nulling pointers after free. |
Comment on lines
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| if (!device_is_ready(mic_priv_dev)) { | ||
| LOG_ERR("mic_privacy device not ready"); | ||
| return -ENODEV; | ||
| } |
Comment on lines
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| fft->fft_size = config->frame_length; | ||
| fft->fft_padded_size = 1 << (31 - norm_int32(fft->fft_size)); /* Round up to nearest 2^N */ | ||
| if (config->frame_shift <= 0) { | ||
| comp_err(dev, "frame_shift must be positive"); | ||
| return -EINVAL; | ||
| } |
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Some small fixes picked up by the audio ztest UTs.