libyang BUGFIX return from void functions
diff --git a/src/tree_schema_free.c b/src/tree_schema_free.c
index 7c367b0..3b9dfdb 100644
--- a/src/tree_schema_free.c
+++ b/src/tree_schema_free.c
@@ -105,13 +105,13 @@
 void
 lysp_include_free_submodule(struct ly_ctx *ctx, struct lysp_include *include)
 {
-    return lysp_include_free_(ctx, include, 0);
+    lysp_include_free_(ctx, include, 0);
 }
 
 void
 lysp_include_free(struct ly_ctx *ctx, struct lysp_include *include)
 {
-    return lysp_include_free_(ctx, include, 1);
+    lysp_include_free_(ctx, include, 1);
 }
 
 void