mmc: block: Fix tag condition with packed writes

commit d806b46e5f496a6335ebd7f8432d2533507ce9a2 upstream.

Apparently a cut-and-paste error, 'do_data_tag' is using 'brq' for data
size even though 'brq' has not been set up. Instead use blk_rq_sectors().

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c
index f600bdcaf5b4ba1d6a32c7208b385e0dc8937cee..07592e428755b0cacaf600b1224f193b70fde664 100644 (file)
--- a/drivers/mmc/card/block.c
+++ b/drivers/mmc/card/block.c
@@ -1772,8 +1772,7 @@ static void mmc_blk_packed_hdr_wrq_prep(struct mmc_queue_req *mqrq,
                do_data_tag = (card->ext_csd.data_tag_unit_size) &&
                        (prq->cmd_flags & REQ_META) &&
                        (rq_data_dir(prq) == WRITE) &&
-                       ((brq->data.blocks * brq->data.blksz) >=
-                        card->ext_csd.data_tag_unit_size);
+                       blk_rq_bytes(prq) >= card->ext_csd.data_tag_unit_size;
                /* Argument of CMD23 */
                packed_cmd_hdr[(i * 2)] = cpu_to_le32(
                        (do_rel_wr ? MMC_CMD23_ARG_REL_WR : 0) |