diff options
Diffstat (limited to 'drivers/tty/serial')
| -rw-r--r-- | drivers/tty/serial/imx.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c index 42a5edd1e0f9..80bed82e0e0e 100644 --- a/drivers/tty/serial/imx.c +++ b/drivers/tty/serial/imx.c @@ -1425,10 +1425,18 @@ static void imx_uart_shutdown(struct uart_port *port) u32 ucr1, ucr2; if (sport->dma_is_enabled) { - sport->dma_is_rxing = 0; - sport->dma_is_txing = 0; dmaengine_terminate_sync(sport->dma_chan_tx); + if (sport->dma_is_txing) { + dma_unmap_sg(sport->port.dev, &sport->tx_sgl[0], + sport->dma_tx_nents, DMA_TO_DEVICE); + sport->dma_is_txing = 0; + } dmaengine_terminate_sync(sport->dma_chan_rx); + if (sport->dma_is_rxing) { + dma_unmap_sg(sport->port.dev, &sport->rx_sgl, + 1, DMA_FROM_DEVICE); + sport->dma_is_rxing = 0; + } spin_lock_irqsave(&sport->port.lock, flags); imx_uart_stop_tx(port); |