diff --git a/components/bt/host/bluedroid/api/esp_hf_client_api.c b/components/bt/host/bluedroid/api/esp_hf_client_api.c
index 64ef18eb320..6c93f44ed1f 100644
--- a/components/bt/host/bluedroid/api/esp_hf_client_api.c
+++ b/components/bt/host/bluedroid/api/esp_hf_client_api.c
@@ -518,9 +518,6 @@ esp_err_t esp_hf_client_register_data_callback(esp_hf_client_incoming_data_cb_t
     if (esp_bluedroid_get_status() != ESP_BLUEDROID_STATUS_ENABLED) {
         return ESP_ERR_INVALID_STATE;
     }
-    if (recv == NULL || send == NULL) {
-        return ESP_ERR_INVALID_ARG;
-    }
 
     btc_msg_t msg;
     msg.sig = BTC_SIG_API_CALL;
diff --git a/components/bt/host/bluedroid/api/include/api/esp_hf_client_legacy_api.h b/components/bt/host/bluedroid/api/include/api/esp_hf_client_legacy_api.h
index 6441bfc4b4a..bd934bd36be 100644
--- a/components/bt/host/bluedroid/api/include/api/esp_hf_client_legacy_api.h
+++ b/components/bt/host/bluedroid/api/include/api/esp_hf_client_legacy_api.h
@@ -57,7 +57,7 @@ typedef uint32_t (* esp_hf_client_outgoing_data_cb_t)(uint8_t *buf, uint32_t len
  * @return
  *                  - ESP_OK: success
  *                  - ESP_ERR_INVALID_STATE: if bluetooth stack is not yet enabled
- *                  - ESP_FAIL: if callback is a NULL function pointer
+ *                  - ESP_FAIL: others
  *
  */
 esp_err_t esp_hf_client_register_data_callback(esp_hf_client_incoming_data_cb_t recv,