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| author |   Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2014-11-28 16:17:11 +0200 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-01-09 14:16:27 -0800 |
| commit | 9bdd6369aa64fade997c6f11325f7c7b60ec3f6a (patch) | |
| tree | b2d6128b7c6d16ce4c5799d31f30736c96f00afc /drivers/tty/serial/8250 | |
| parent | serial: mxs-auart: Use devm_request_irq() (diff) | |
| download | linux-dev-9bdd6369aa64fade997c6f11325f7c7b60ec3f6a.tar.xz linux-dev-9bdd6369aa64fade997c6f11325f7c7b60ec3f6a.zip | |
serial: 8250_dma: terminate transfer explicitly when timeout
There is no need to terminate transfer in the __dma_rx_complete() since it's
called at the end of transfer. Special case when serial timeout occurs is
handled separately where we have to terminate transfer.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial/8250')
| -rw-r--r-- | drivers/tty/serial/8250/8250_dma.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/tty/serial/8250/8250_dma.c b/drivers/tty/serial/8250/8250_dma.c index fcd7ac6af2fc..e508939daea3 100644 --- a/drivers/tty/serial/8250/8250_dma.c +++ b/drivers/tty/serial/8250/8250_dma.c @@ -59,7 +59,6 @@ static void __dma_rx_complete(void *param) dma->rx_running = 0; dmaengine_tx_status(dma->rxchan, dma->rx_cookie, &state); - dmaengine_terminate_all(dma->rxchan); count = dma->rx_size - state.residue; @@ -131,6 +130,7 @@ int serial8250_rx_dma(struct uart_8250_port *p, unsigned int iir) if (dma->rx_running) { dmaengine_pause(dma->rxchan); __dma_rx_complete(p); + dmaengine_terminate_all(dma->rxchan); } return -ETIMEDOUT; default: |