diff options
| -rw-r--r-- | drivers/tty/serial/mvf.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/tty/serial/mvf.c b/drivers/tty/serial/mvf.c index 1b730afd4312..0ea0181cd455 100644 --- a/drivers/tty/serial/mvf.c +++ b/drivers/tty/serial/mvf.c @@ -647,10 +647,10 @@ static void imx_shutdown(struct uart_port *port) if (sport->enable_dma) { /* We have to wait for the DMA to finish. */ - if (sport->dma_tx_ch) { + if (sport->dma_tx_ch >= 0) { mcf_edma_stop_transfer(sport->dma_tx_ch); mcf_edma_free_channel(sport->dma_tx_ch, sport); - sport->dma_tx_ch = 0; + sport->dma_tx_ch = -1; } } |