diff --git a/main/i2s_main.c b/main/i2s_main.c
index 96886be..27fff2f 100644
--- a/main/i2s_main.c
+++ b/main/i2s_main.c
@@ -27,13 +27,15 @@ i2c_master_bus_config_t i2c_bus_config = {
         .glitch_ignore_cnt = 7,
         .flags.enable_internal_pullup = true,
     };
-    i2c_master_bus_handle_t bus_handle;
+
+i2c_master_bus_handle_t bus_handle;
 
 i2c_device_config_t chipconfig = {
     .scl_speed_hz = 100000,
     .device_address = 0b00100010 >> 1,
 };
-static const char TAG[] = "i2c-eeprom";
+i2c_master_dev_handle_t i2c_dev;
+
 static void i2s_example_read_task(void *args)
 {
     uint8_t *r_buf = (uint8_t *)calloc(1, EXAMPLE_BUFF_SIZE);
@@ -138,15 +140,12 @@ static void i2s_example_init_std_duplex(void)
     ESP_ERROR_CHECK(i2s_channel_init_std_mode(rx_chan, &std_cfg));
 }
 
-i2c_master_dev_handle_t i2c_dev;
-
 void app_main(void)
 {
     i2s_example_init_std_duplex();
     ESP_ERROR_CHECK(i2c_new_master_bus(&i2c_bus_config, &bus_handle));
-    int ret;
  
-    ESP_GOTO_ON_ERROR(i2c_master_bus_add_device(bus_handle, &chipconfig, &i2c_dev), err, TAG, "i2c new bus failed");
+    ESP_ERROR_CHECK(i2c_master_bus_add_device(bus_handle, &chipconfig, &i2c_dev));
     
     while (1) {
         for (int i = 0; i < 256; i++) {
@@ -164,8 +163,4 @@ void app_main(void)
     /* Step 3: Create writing and reading task, enable and start the channels */
     xTaskCreate(i2s_example_read_task, "i2s_example_read_task", 4096, NULL, 5, NULL);
     xTaskCreate(i2s_example_write_task, "i2s_example_write_task", 4096, NULL, 5, NULL);
-    
-err:
-    printf("Error\n");
-    return;
 }