fix crash when traceback object is supplied

microdev1 · web-flow · commit 32ee06b293b2 · 2021-08-09T22:53:23.000+05:30
diff --git a/shared-bindings/traceback/__init__.c b/shared-bindings/traceback/__init__.c
@@ -57,7 +57,7 @@ STATIC void traceback_exception_common(mp_print_t *print, mp_obj_t value, mp_obj
         }
         exc.traceback = MP_OBJ_TO_PTR(tb_obj);
     } else {
-        exc.traceback = NULL;
+        exc.traceback = (mp_obj_traceback_t *)&mp_const_empty_traceback_obj;
     }
 
     shared_module_traceback_print_exception(&exc, print, limit);

Original file line number	Diff line number	Diff line change
`@@ -57,7 +57,7 @@ STATIC void traceback_exception_common(mp_print_t *print, mp_obj_t value, mp_obj`
`57`	`57`	`}`
`58`	`58`	`exc.traceback = MP_OBJ_TO_PTR(tb_obj);`
`59`	`59`	`} else {`
`60`		`- exc.traceback = NULL;`
	`60`	`+ exc.traceback = (mp_obj_traceback_t *)&mp_const_empty_traceback_obj;`
`61`	`61`	`}`
`62`	`62`
`63`	`63`	`shared_module_traceback_print_exception(&exc, print, limit);`