Micky Ching be186ad582 mmc: rtsx: check sg_count before long data xfer
Check sg_count before sending long data xfer.
Because dma_map_sg() return int, and sg_count may be negative,
so using int instead of unsigned.

Signed-off-by: Micky Ching <micky_ching@realsil.com.cn>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-01-21 13:58:44 +01:00
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