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    Subject[PATCH 3/7] serial: imx: init dma_is_{rx|tx}ing variables
    Date
    From: Nandor Han <nandor.han@ge.com>

    Initialize both dma_is_{rx|tx}ing variables when DMA is enabled to avoid
    checking uninitialized variables if port shutdown is requested before
    DMA channels get a chance to start.

    Signed-off-by: Nandor Han <nandor.han@ge.com>
    Signed-off-by: Romain Perier <romain.perier@collabora.com>
    ---
    drivers/tty/serial/imx.c | 3 +++
    1 file changed, 3 insertions(+)

    diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c
    index 188063d..81fb413 100644
    --- a/drivers/tty/serial/imx.c
    +++ b/drivers/tty/serial/imx.c
    @@ -1225,6 +1225,9 @@ static void imx_enable_dma(struct imx_port *sport)

    imx_setup_ufcr(sport, TXTL_DMA, RXTL_DMA);

    + sport->dma_is_rxing = 0;
    + sport->dma_is_txing = 0;
    +
    sport->dma_is_enabled = 1;
    }

    --
    1.8.3.1
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