mesa: glsl: added null ptr check

diff --git a/src/mesa/shader/slang/slang_compile_struct.c b/src/mesa/shader/slang/slang_compile_struct.c
index 96bdb1f..063db37 100644 (file)
--- a/src/mesa/shader/slang/slang_compile_struct.c
+++ b/src/mesa/shader/slang/slang_compile_struct.c
@@ -124,7 +124,8 @@ slang_struct_destruct(slang_struct * stru)
 {
    slang_variable_scope_destruct(stru->fields);
    _slang_free(stru->fields);
-   slang_struct_scope_destruct(stru->structs);
+   if (stru->structs)
+      slang_struct_scope_destruct(stru->structs);
    _slang_free(stru->structs);
 }