Setting host->data to NULL is incorrect sequence in dw_mci_command_complete. This early setting makes the skip of dma_unmap_sg in dw_mci_dma_cleanup. Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com> Acked-by: Will Newton <will.newton@gmail.com> Signed-off-by: Chris Ball <cjb@laptop.org>