diff --git a/components/driver/usb_serial_jtag/usb_serial_jtag.c b/components/driver/usb_serial_jtag/usb_serial_jtag.c index 76a5fd83ef9..4de3e7261f8 100644 --- a/components/driver/usb_serial_jtag/usb_serial_jtag.c +++ b/components/driver/usb_serial_jtag/usb_serial_jtag.c @@ -1,5 +1,5 @@ /* - * SPDX-FileCopyrightText: 2021-2022 Espressif Systems (Shanghai) CO LTD + * SPDX-FileCopyrightText: 2021-2023 Espressif Systems (Shanghai) CO LTD * * SPDX-License-Identifier: Apache-2.0 */ @@ -163,10 +163,10 @@ int usb_serial_jtag_write_bytes(const void* src, size_t size, TickType_t ticks_t const uint8_t *buff = (const uint8_t *)src; // Blocking method, Sending data to ringbuffer, and handle the data in ISR. - xRingbufferSend(p_usb_serial_jtag_obj->tx_ring_buf, (void*) (buff), size, ticks_to_wait); + BaseType_t result = xRingbufferSend(p_usb_serial_jtag_obj->tx_ring_buf, (void*) (buff), size, ticks_to_wait); // Now trigger the ISR to read data from the ring buffer. - usb_serial_jtag_ll_ena_intr_mask(USB_SERIAL_JTAG_INTR_SERIAL_IN_EMPTY); - return size; + usb_serial_jtag_ll_ena_intr_mask(USB_SERIAL_JTAG_INTR_SERIAL_IN_EMPTY); + return (result == pdFALSE) ? 0 : size; } esp_err_t usb_serial_jtag_driver_uninstall(void)