1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/md/dm-round-robin.c b/drivers/md/dm-round-robin.c
index 27f1d423b76..6ab1192cdd5 100644
--- a/drivers/md/dm-round-robin.c
+++ b/drivers/md/dm-round-robin.c
@@ -114,6 +114,7 @@ static int rr_add_path(struct path_selector *ps, struct dm_path *path,
         struct selector *s = (struct selector *) ps->context;
         struct path_info *pi;
         unsigned repeat_count = RR_MIN_IO;
+        char dummy;
 
         if (argc > 1) {
                 *error = "round-robin ps: incorrect number of arguments";
@@ -121,7 +122,7 @@ static int rr_add_path(struct path_selector *ps, struct dm_path *path,
         }
 
         /* First path argument is number of I/Os before switching path */
-        if ((argc == 1) && (sscanf(argv[0], "%u", &repeat_count) != 1)) {
+        if ((argc == 1) && (sscanf(argv[0], "%u%c", &repeat_count, &dummy) != 1)) {
                 *error = "round-robin ps: invalid repeat count";
                 return -EINVAL;
         }