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![Peter Griffin](https://secure.gravatar.com/avatar/9f8c305669eaefee7345cf6c57b18f5f.jpg?s=96&d=mm)
Peter Griffin committed 71f7e6cc550
dmaengine: tegra20-apb-dma: Only calculate residue if txstate exists. There is no point calculating the residue if there is no txstate to store the value. Signed-off-by: Peter Griffin <peter.griffin@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com>