1 files changed, 8 insertions, 0 deletions

diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c
index fe8041e619ea..b25e9b6516ae 100644
--- a/drivers/mmc/card/block.c
+++ b/drivers/mmc/card/block.c
@@ -254,6 +254,14 @@ static int mmc_blk_issue_rq(struct mmc_queue *mq, struct request *req)
                 brq.data.blocks = req->nr_sectors;
 
                 /*
+                 * The block layer doesn't support all sector count
+                 * restrictions, so we need to be prepared for too big
+                 * requests.
+                 */
+                if (brq.data.blocks > card->host->max_blk_count)
+                        brq.data.blocks = card->host->max_blk_count;
+
+                /*
                  * After a read error, we redo the request one sector at a time
                  * in order to accurately determine which sectors can be read
                  * successfully.