Merge tag 'tty-4.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

[firefly-linux-kernel-4.4.55.git] / drivers / tty / serial / 8250 / 8250_dma.c

diff --git a/drivers/tty/serial/8250/8250_dma.c b/drivers/tty/serial/8250/8250_dma.c
index b50307129901c39436b3c7170aae1fe63cc3aac3..78259d3c6a55592281a5c6aaad88c5ae727d9615 100644 (file)
--- a/drivers/tty/serial/8250/8250_dma.c
+++ b/drivers/tty/serial/8250/8250_dma.c
@@ -77,10 +77,6 @@ int serial8250_tx_dma(struct uart_8250_port *p)
                return 0;
 
        dma->tx_size = CIRC_CNT_TO_END(xmit->head, xmit->tail, UART_XMIT_SIZE);
-       if (dma->tx_size < p->port.fifosize) {
-               ret = -EINVAL;
-               goto err;
-       }
 
        desc = dmaengine_prep_slave_single(dma->txchan,
                                           dma->tx_addr + xmit->tail,