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    Subject[PATCH V2 19/20] dmaengine/amba-pl08x: Check txd->llis_va before freeing dma_pool
    Date
    In pl08x_free_txd(), check if pool is allocated successfully before freeing it.

    Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
    Acked-by: Linus Walleij <linus.walleij@linaro.org>
    ---
    drivers/dma/amba-pl08x.c | 3 ++-
    1 files changed, 2 insertions(+), 1 deletions(-)

    diff --git a/drivers/dma/amba-pl08x.c b/drivers/dma/amba-pl08x.c
    index adc8a36..2667e0d 100644
    --- a/drivers/dma/amba-pl08x.c
    +++ b/drivers/dma/amba-pl08x.c
    @@ -796,7 +796,8 @@ static void pl08x_free_txd(struct pl08x_driver_data *pl08x,
    struct pl08x_sg *dsg, *_dsg;

    /* Free the LLI */
    - dma_pool_free(pl08x->pool, txd->llis_va, txd->llis_bus);
    + if (txd->llis_va)
    + dma_pool_free(pl08x->pool, txd->llis_va, txd->llis_bus);

    pl08x->pool_ctr--;

    --
    1.7.2.2


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