diff options
| author | Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com> | 2023-05-19 22:17:06 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2023-05-22 11:18:21 +0100 |
| commit | d849996f7458042af803b7d15a181922834c5249 (patch) | |
| tree | 084647c2c95d951ea2f61ae000787397c9358342 | |
| parent | ff04437f6dcd138b50483afc7b313f016020ce8f (diff) | |
| download | lwn-d849996f7458042af803b7d15a181922834c5249.tar.gz lwn-d849996f7458042af803b7d15a181922834c5249.zip | |
ASoC: Intel: avs: Access path components under lock
Path and its components should be accessed under lock to prevent
problems with one thread modifying them while other tries to read.
Fixes: c8c960c10971 ("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>
| -rw-r--r-- | sound/soc/intel/avs/apl.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/sound/soc/intel/avs/apl.c b/sound/soc/intel/avs/apl.c index 02683dce277a..1860099c782a 100644 --- a/sound/soc/intel/avs/apl.c +++ b/sound/soc/intel/avs/apl.c @@ -169,6 +169,7 @@ static bool apl_lp_streaming(struct avs_dev *adev) { struct avs_path *path; + spin_lock(&adev->path_list_lock); /* Any gateway without buffer allocated in LP area disqualifies D0IX. */ list_for_each_entry(path, &adev->path_list, node) { struct avs_path_pipeline *ppl; @@ -188,11 +189,14 @@ static bool apl_lp_streaming(struct avs_dev *adev) if (cfg->copier.dma_type == INVALID_OBJECT_ID) continue; - if (!mod->gtw_attrs.lp_buffer_alloc) + if (!mod->gtw_attrs.lp_buffer_alloc) { + spin_unlock(&adev->path_list_lock); return false; + } } } } + spin_unlock(&adev->path_list_lock); return true; } |