mmc: core: always check the length of sglist with total data size

All the check within mmc_mrq_prep seems to be all-or-none
proposition, so it doesn't make sense to only check the
length of sglist only under the CONFIG_MMC_DEBUG context.
I'd prefer to always keep the check there unconditionally.

Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index b311ec9..634f9ca 100644 (file)
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -295,10 +295,8 @@ static void mmc_mrq_pr_debug(struct mmc_host *host, struct mmc_request *mrq)
 
 static int mmc_mrq_prep(struct mmc_host *host, struct mmc_request *mrq)
 {
-#ifdef CONFIG_MMC_DEBUG
-       unsigned int i, sz;
+       unsigned int i, sz = 0;
        struct scatterlist *sg;
-#endif
 
        if (mrq->cmd) {
                mrq->cmd->error = 0;
@@ -314,13 +312,12 @@ static int mmc_mrq_prep(struct mmc_host *host, struct mmc_request *mrq)
                    mrq->data->blocks > host->max_blk_count ||
                    mrq->data->blocks * mrq->data->blksz > host->max_req_size)
                        return -EINVAL;
-#ifdef CONFIG_MMC_DEBUG
-               sz = 0;
+
                for_each_sg(mrq->data->sg, sg, mrq->data->sg_len, i)
                        sz += sg->length;
                if (sz != mrq->data->blocks * mrq->data->blksz)
                        return -EINVAL;
-#endif
+
                mrq->data->error = 0;
                mrq->data->mrq = mrq;
                if (mrq->stop) {