pictureflow: Fix concurrency issues building art cache

Guards against possible image corruption

Change-Id: Id7e1e3a09cb13c255eea0ffdd2e4c4d558086997

1 files changed, 6 insertions, 1 deletions

diff --git a/apps/plugins/pictureflow/pictureflow.c b/apps/plugins/pictureflow/pictureflow.c
index a2782b6a2b..65efed72c7 100644
--- a/apps/plugins/pictureflow/pictureflow.c
+++ b/apps/plugins/pictureflow/pictureflow.c
@@ -4416,7 +4416,12 @@ static int pictureflow_main(const char* selected_file)
                 break;
             case pf_idle:
                 render_all_slides();
-                incremental_albumart_cache(false);
+                if (aa_cache.inspected < pf_idx.album_ct)
+                {
+                    buf_ctx_lock();
+                    incremental_albumart_cache(false);
+                    buf_ctx_unlock();
+                }
                 break;
         }