diff options
Diffstat (limited to 'hw/char/sifive_uart.c')
| -rw-r--r-- | hw/char/sifive_uart.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/hw/char/sifive_uart.c b/hw/char/sifive_uart.c index 0fc89e76d1..9bc697a67b 100644 --- a/hw/char/sifive_uart.c +++ b/hw/char/sifive_uart.c @@ -128,8 +128,10 @@ static void sifive_uart_write_tx_fifo(SiFiveUARTState *s, const uint8_t *buf, s->txfifo |= SIFIVE_UART_TXFIFO_FULL; } - timer_mod(s->fifo_trigger_handle, current_time + - TX_INTERRUPT_TRIGGER_DELAY_NS); + if (!timer_pending(s->fifo_trigger_handle)) { + timer_mod(s->fifo_trigger_handle, current_time + + TX_INTERRUPT_TRIGGER_DELAY_NS); + } } static uint64_t |