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-rw-r--r--drivers/mmc/card/block.c3
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);