serial: tegra: Fix cookie used by TX channel

The DMA cookie for the RX channel is being used by the TX channel.
Therefore, fix driver to use the correct DMA cookie for the TX channel.

Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/tty/serial/serial-tegra.c b/drivers/tty/serial/serial-tegra.c
index a5312e4b6393500a1c36a0b61de577da13919c04..987c05665e626f26a5a6ad5e92d8e79eaa930c45 100644 (file)
--- a/drivers/tty/serial/serial-tegra.c
+++ b/drivers/tty/serial/serial-tegra.c
@@ -410,7 +410,7 @@ static void tegra_uart_tx_dma_complete(void *args)
        unsigned long flags;
        unsigned int count;
 
-       dmaengine_tx_status(tup->tx_dma_chan, tup->rx_cookie, &state);
+       dmaengine_tx_status(tup->tx_dma_chan, tup->tx_cookie, &state);
        count = tup->tx_bytes_requested - state.residue;
        async_tx_ack(tup->tx_dma_desc);
        spin_lock_irqsave(&tup->uport.lock, flags);