diff options
Diffstat (limited to 'drivers/tty/serial/8250/8250_mid.c')
| -rw-r--r-- | drivers/tty/serial/8250/8250_mid.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/tty/serial/8250/8250_mid.c b/drivers/tty/serial/8250/8250_mid.c index b218ff528df7..339de9cd0866 100644 --- a/drivers/tty/serial/8250/8250_mid.c +++ b/drivers/tty/serial/8250/8250_mid.c @@ -96,6 +96,7 @@ static int tng_setup(struct mid8250 *mid, struct uart_port *p) static int dnv_handle_irq(struct uart_port *p) { struct mid8250 *mid = p->private_data; + struct uart_8250_port *up = up_to_u8250p(p); unsigned int fisr = serial_port_in(p, INTEL_MID_UART_DNV_FISR); u32 status; int ret = IRQ_NONE; @@ -103,9 +104,10 @@ static int dnv_handle_irq(struct uart_port *p) if (fisr & BIT(2)) { err = hsu_dma_get_status(&mid->dma_chip, 1, &status); - if (err > 0) + if (err > 0) { + serial8250_rx_dma_flush(up); ret |= IRQ_HANDLED; - else if (err == 0) + } else if (err == 0) ret |= hsu_dma_do_irq(&mid->dma_chip, 1, status); } if (fisr & BIT(1)) { |