1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/block/genhd.c b/drivers/block/genhd.c
index 47fd3659a061..d42840cc0d1d 100644
--- a/drivers/block/genhd.c
+++ b/drivers/block/genhd.c
@@ -45,7 +45,7 @@ int get_blkdev_list(char *p, int used)
         struct blk_major_name *n;
         int i, len;
 
-        len = sprintf(p, "\nBlock devices:\n");
+        len = snprintf(p, (PAGE_SIZE-used), "\nBlock devices:\n");
 
         down(&block_subsys_sem);
         for (i = 0; i < ARRAY_SIZE(major_names); i++) {