mmc: Use snprintf, not sprintf.

Fix an issue found by klockwork. Just paranoia.

Signed-off-by: JiebingLi <jiebing.li@intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Chris Ball <cjb@laptop.org>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c
index 00073b7c0368..759a105cb216 100644
--- a/drivers/mmc/card/block.c
+++ b/drivers/mmc/card/block.c
@@ -620,7 +620,8 @@ static struct mmc_blk_data *mmc_blk_alloc(struct mmc_card *card)
          * messages to tell when the card is present.
          */
 
-        sprintf(md->disk->disk_name, "mmcblk%d", devidx);
+        snprintf(md->disk->disk_name, sizeof(md->disk->disk_name),
+                "mmcblk%d", devidx);
 
         blk_queue_logical_block_size(md->queue.queue, 512);