tree a79be2baf6c5839d9f53ca6022260fc78e4e505e
parent e841b80f450ba788c4855af5cc4c535ed9ab7e47
author Peter Griffin <peter.griffin@linaro.org> 1465321118 +0100
committer Vinod Koul <vinod.koul@intel.com> 1466525100 +0530

dmaengine: ste_dma40: 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>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>