Alexey Khoroshilov e81c022a00 mmc: wbsd: safer check if dma_addr is valid DMA address ...

host->dma_addr can store a value that is not returned by the DMA API,
so it is safer to check if is a valid DMA address indirectly.

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

2017-02-13 13:20:26 +01:00

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