stmhal: Use rt_check_nargs to check number of arguments.

1 files changed, 1 insertions, 3 deletions

diff --git a/stmhal/i2c.c b/stmhal/i2c.c
index 9bf7799f4..9556e32c9 100644
--- a/stmhal/i2c.c
+++ b/stmhal/i2c.c
@@ -80,9 +80,7 @@ STATIC pyb_i2c_obj_t pyb_i2c_obj[PYB_NUM_I2C] = {{{&pyb_i2c_type}, &I2cHandle_X}
 
 STATIC mp_obj_t pyb_i2c_make_new(mp_obj_t type_in, uint n_args, uint n_kw, const mp_obj_t *args) {
     // check arguments
-    if (!(n_args == 1 && n_kw == 0)) {
-        nlr_jump(mp_obj_new_exception_msg(&mp_type_ValueError, "I2C accepts 1 argument"));
-    }
+    rt_check_nargs(n_args, 1, 1, n_kw, false);
 
     // get i2c number
     machine_int_t i2c_id = mp_obj_get_int(args[0]) - 1;