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kaidegit
b57c80f06f
When rx_bufsz or tx_bufsz is 0, the driver returns -RT_EPERM but falls through to RT_ASSERT(rx_fifo/tx_fifo != RT_NULL). Since serial_rx/serial_tx is NULL in non-buffered mode, this triggers an assertion failure. Add break after setting ret = -RT_EPERM in the four affected cases: - RT_SERIAL_CTRL_SET_RX_TIMEOUT - RT_SERIAL_CTRL_SET_TX_TIMEOUT - RT_SERIAL_CTRL_GET_RX_TIMEOUT - RT_SERIAL_CTRL_GET_TX_TIMEOUT