From: Amadeusz Sławiński amadeuszx.slawinski@linux.intel.com
commit d849996f7458042af803b7d15a181922834c5249 upstream.
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... Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- sound/soc/intel/avs/apl.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
--- a/sound/soc/intel/avs/apl.c +++ b/sound/soc/intel/avs/apl.c @@ -173,6 +173,7 @@ static bool apl_lp_streaming(struct avs_ { 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; @@ -192,11 +193,14 @@ static bool apl_lp_streaming(struct avs_ 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; }