1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/md/dm-flakey.c b/drivers/md/dm-flakey.c
index b280c433e4a..ac49c01f1a4 100644
--- a/drivers/md/dm-flakey.c
+++ b/drivers/md/dm-flakey.c
@@ -160,6 +160,7 @@ static int flakey_ctr(struct dm_target *ti, unsigned int argc, char **argv)
         unsigned long long tmpll;
         struct dm_arg_set as;
         const char *devname;
+        char dummy;
 
         as.argc = argc;
         as.argv = argv;
@@ -178,7 +179,7 @@ static int flakey_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 
         devname = dm_shift_arg(&as);
 
-        if (sscanf(dm_shift_arg(&as), "%llu", &tmpll) != 1) {
+        if (sscanf(dm_shift_arg(&as), "%llu%c", &tmpll, &dummy) != 1) {
                 ti->error = "Invalid device sector";
                 goto bad;
         }