mmc: fix mmc_davinci_xfer_done() function

In mmc_davinci_xfer_done() function data direction variable
is being modified before the call to davinci_abort_dma().
But inside the davinci_abort_dma() function data direction
variable is being checked to select the channel to abort.

Without this patch, davinci_abort_dma() function always
aborts, TX channel dma.
Signed-off-by: Sudhakar Rajashekhara <sudhakar.raj@ti.com>
Acked-by: Vipin Bhandari <vipin.bhandari@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>

drivers/mmc/host/davinci_mmc.c

@@ -827,7 +827,6 @@ static void
 mmc_davinci_xfer_done(struct mmc_davinci_host *host, struct mmc_data *data)
 {
 	host->data = NULL;
-	host->data_dir = DAVINCI_MMC_DATADIR_NONE;
 
 	if (host->do_dma) {
 		davinci_abort_dma(host);
@@ -838,6 +837,7 @@ mmc_davinci_xfer_done(struct mmc_davinci_host *host, struct mmc_data *data)
 			     : DMA_FROM_DEVICE);
 		host->do_dma = false;
 	}
+	host->data_dir = DAVINCI_MMC_DATADIR_NONE;
 
 	if (!data->stop || (host->cmd && host->cmd->error)) {
 		mmc_request_done(host->mmc, data->mrq);