py: Give error for duplicate label in inline assembler.

1 files changed, 1 insertions, 1 deletions

diff --git a/py/emit.h b/py/emit.h
index ea8c3a655..f350f8934 100644
--- a/py/emit.h
+++ b/py/emit.h
@@ -193,7 +193,7 @@ typedef struct _emit_inline_asm_method_table_t {
     void (*start_pass)(emit_inline_asm_t *emit, pass_kind_t pass, scope_t *scope, mp_obj_t *error_slot);
     void (*end_pass)(emit_inline_asm_t *emit);
     mp_uint_t (*count_params)(emit_inline_asm_t *emit, mp_uint_t n_params, mp_parse_node_t *pn_params);
-    void (*label)(emit_inline_asm_t *emit, mp_uint_t label_num, qstr label_id);
+    bool (*label)(emit_inline_asm_t *emit, mp_uint_t label_num, qstr label_id);
     void (*align)(emit_inline_asm_t *emit, mp_uint_t align);
     void (*data)(emit_inline_asm_t *emit, mp_uint_t bytesize, mp_uint_t val);
     void (*op)(emit_inline_asm_t *emit, qstr op, mp_uint_t n_args, mp_parse_node_t *pn_args);