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serial: tegra: Fix cookie used by TX channel

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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>
This commit is contained in:
Jon Hunter 2015-05-05 15:17:57 +01:00 committed by Greg Kroah-Hartman
parent 0b0c1bdf7a
commit 49433c802c
1 changed files with 1 additions and 1 deletions
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2
drivers/tty/serial/serial-tegra.c
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@ -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);