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ASoC: Intel: avs: Access path components under lock

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commit d849996f74 upstream.

Path and its components should be accessed under lock to prevent
problems with one thread modifying them while other tries to read.

Fixes: c8c960c109 ("ASoC: Intel: avs: APL-based platforms support")
Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com>
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Link: https://lore.kernel.org/r/20230519201711.4073845-3-amadeuszx.slawinski@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Amadeusz Sławiński
2023-05-19 22:17:06 +02:00
committed by Greg Kroah-Hartman
parent 6ae9cf40b4
commit ad72cb5899
1 changed files with 5 additions and 1 deletions
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6
sound/soc/intel/avs/apl.c
View File

@@ -173,6 +173,7 @@ static bool apl_lp_streaming(struct avs_dev *adev)
{ {
struct avs_path *path; struct avs_path *path;
spin_lock(&adev->path_list_lock);
/* Any gateway without buffer allocated in LP area disqualifies D0IX. */ /* Any gateway without buffer allocated in LP area disqualifies D0IX. */
list_for_each_entry(path, &adev->path_list, node) { list_for_each_entry(path, &adev->path_list, node) {
struct avs_path_pipeline *ppl; struct avs_path_pipeline *ppl;
@@ -192,11 +193,14 @@ static bool apl_lp_streaming(struct avs_dev *adev)
if (cfg->copier.dma_type == INVALID_OBJECT_ID) if (cfg->copier.dma_type == INVALID_OBJECT_ID)
continue; continue;
if (!mod->gtw_attrs.lp_buffer_alloc) if (!mod->gtw_attrs.lp_buffer_alloc) {
spin_unlock(&adev->path_list_lock);
return false; return false;
}
} }
} }
} }
spin_unlock(&adev->path_list_lock);
return true; return true;
} }