Fix T61906: crash rendering softbody with Cycles and timeline visible.

Make sure we don't reallocate arrays in the pointcache when not needed, the
size of a memory allocation can be slightly bigger than the requested size.

Also, use consistent check for shared cached in copy and free functions.

1 files changed, 4 insertions, 0 deletions

diff --git a/source/blender/makesdna/DNA_object_force_types.h b/source/blender/makesdna/DNA_object_force_types.h
index c7bb3dad809..e09df0635ef 100644
--- a/source/blender/makesdna/DNA_object_force_types.h
+++ b/source/blender/makesdna/DNA_object_force_types.h
@@ -272,11 +272,15 @@ typedef struct PointCache {
 	char info[64];
 	/** File path, 1024 = FILE_MAX. */
 	char path[1024];
+
 	/**
 	 * Array of length endframe-startframe+1 with flags to indicate cached frames.
 	 * Can be later used for other per frame flags too if needed.
 	 */
 	char *cached_frames;
+	int cached_frames_len;
+	char _pad1[4];
+
 	struct ListBase mem_cache;
 
 	struct PTCacheEdit *edit;