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    Subject[PATCH] dma: mmp_tdma: kill tasklet when free dma channel
    Date
    kill tasklet task when free dam channel, otherwise the task may
    run after related resource is released, then unknown things may
    happen.

    Signed-off-by: Qiao Zhou <zhouqiao@marvell.com>
    ---
    drivers/dma/mmp_tdma.c | 3 +++
    1 files changed, 3 insertions(+), 0 deletions(-)

    diff --git a/drivers/dma/mmp_tdma.c b/drivers/dma/mmp_tdma.c
    index 43d5a6c..2622b2a 100644
    --- a/drivers/dma/mmp_tdma.c
    +++ b/drivers/dma/mmp_tdma.c
    @@ -333,6 +333,9 @@ static void mmp_tdma_free_chan_resources(struct dma_chan *chan)

    if (tdmac->irq)
    devm_free_irq(tdmac->dev, tdmac->irq, tdmac);
    +
    + tasklet_kill(&tdmac->tasklet);
    +
    mmp_tdma_free_descriptor(tdmac);
    return;
    }
    --
    1.7.0.4


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