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    Subject[PATCH 4.4 050/193] dmaengine: ioat: Fix error handling path
    Date
    4.4-stable review patch.  If anyone has any objections, please let me know.

    ------------------

    From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>


    [ Upstream commit 5c9afbda911ce20b3f2181d1e440a0222e1027dd ]

    If the last test in 'ioat_dma_self_test()' fails, we must release all
    the allocated resources and not just part of them.

    Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
    Acked-by: Dave Jiang <dave.jiang@intel.com>
    Signed-off-by: Vinod Koul <vinod.koul@intel.com>
    Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    ---
    drivers/dma/ioat/init.c | 2 +-
    1 file changed, 1 insertion(+), 1 deletion(-)

    --- a/drivers/dma/ioat/init.c
    +++ b/drivers/dma/ioat/init.c
    @@ -395,7 +395,7 @@ static int ioat_dma_self_test(struct ioa
    if (memcmp(src, dest, IOAT_TEST_SIZE)) {
    dev_err(dev, "Self-test copy failed compare, disabling\n");
    err = -ENODEV;
    - goto free_resources;
    + goto unmap_dma;
    }

    unmap_dma:

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