mmc: block: Use local variables in mmc_blk_data_prep()

Use local variables in mmc_blk_data_prep() in preparation for adding CQE
support which doesn't use the output variables.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

drivers/mmc/core/block.c

@@ -1575,19 +1575,20 @@ static enum mmc_blk_status mmc_blk_err_check(struct mmc_card *card,
 }
 
 static void mmc_blk_data_prep(struct mmc_queue *mq, struct mmc_queue_req *mqrq,
-			      int disable_multi, bool *do_rel_wr,
-			      bool *do_data_tag)
+			      int disable_multi, bool *do_rel_wr_p,
+			      bool *do_data_tag_p)
 {
 	struct mmc_blk_data *md = mq->blkdata;
 	struct mmc_card *card = md->queue.card;
 	struct mmc_blk_request *brq = &mqrq->brq;
 	struct request *req = mmc_queue_req_to_req(mqrq);
+	bool do_rel_wr, do_data_tag;
 
 	/*
 	 * Reliable writes are used to implement Forced Unit Access and
 	 * are supported only on MMCs.
 	 */
-	*do_rel_wr = (req->cmd_flags & REQ_FUA) &&
+	do_rel_wr = (req->cmd_flags & REQ_FUA) &&
 		    rq_data_dir(req) == WRITE &&
 		    (md->flags & MMC_BLK_REL_WR);
 
@@ -1637,14 +1638,14 @@ static void mmc_blk_data_prep(struct mmc_queue *mq, struct mmc_queue_req *mqrq,
 						brq->data.blocks);
 	}
 
-	if (*do_rel_wr)
+	if (do_rel_wr)
 		mmc_apply_rel_rw(brq, card, req);
 
 	/*
 	 * Data tag is used only during writing meta data to speed
 	 * up write and any subsequent read of this meta data
 	 */
-	*do_data_tag = card->ext_csd.data_tag_unit_size &&
+	do_data_tag = card->ext_csd.data_tag_unit_size &&
 		      (req->cmd_flags & REQ_META) &&
 		      (rq_data_dir(req) == WRITE) &&
 		      ((brq->data.blocks * brq->data.blksz) >=
@@ -1675,6 +1676,12 @@ static void mmc_blk_data_prep(struct mmc_queue *mq, struct mmc_queue_req *mqrq,
 	}
 
 	mqrq->areq.mrq = &brq->mrq;
+
+	if (do_rel_wr_p)
+		*do_rel_wr_p = do_rel_wr;
+
+	if (do_data_tag_p)
+		*do_data_tag_p = do_data_tag;
 }
 
 static void mmc_blk_rw_rq_prep(struct mmc_queue_req *mqrq,