Minor warning cleanup & fix

- comment/remove assignments from values to themselves.
- add case break statements (no functional change but some source code checkers notice).
- fix python errors when the sculpt brush is None.

1 files changed, 1 insertions, 0 deletions

diff --git a/source/blender/nodes/intern/CMP_nodes/CMP_channelMatte.c b/source/blender/nodes/intern/CMP_nodes/CMP_channelMatte.c
index b32c531d8f9..e395716f36d 100644
--- a/source/blender/nodes/intern/CMP_nodes/CMP_channelMatte.c
+++ b/source/blender/nodes/intern/CMP_nodes/CMP_channelMatte.c
@@ -97,6 +97,7 @@ static void do_channel_matte(bNode *node, float *out, float *in)
 			default:
 				break;
 		}
+		break;
 	}
 	default:
 		break;