rbd: use snprintf for disk->disk_name

Signed-off-by: Sage Weil <sage@newdream.net>

diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index 0d80967e140c19d21fe0bc0e40ee65a664bbecc9..d833d02b321f239b840266f739a6a878eb47cacf 100644 (file)
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -1721,7 +1721,8 @@ static int rbd_init_disk(struct rbd_device *rbd_dev)
        if (!disk)
                goto out;
 
-       sprintf(disk->disk_name, DRV_NAME "%d", rbd_dev->id);
+       snprintf(disk->disk_name, sizeof(disk->disk_name), DRV_NAME "%d",
+                rbd_dev->id);
        disk->major = rbd_dev->major;
        disk->first_minor = 0;
        disk->fops = &rbd_bd_ops;