1 files changed, 8 insertions, 4 deletions

diff --git a/drivers/md/dm-raid1.c b/drivers/md/dm-raid1.c
index 9bfd057be686..d039de8322f0 100644
--- a/drivers/md/dm-raid1.c
+++ b/drivers/md/dm-raid1.c
@@ -924,8 +924,9 @@ static int get_mirror(struct mirror_set *ms, struct dm_target *ti,
                       unsigned int mirror, char **argv)
 {
         unsigned long long offset;
+        char dummy;
 
-        if (sscanf(argv[1], "%llu", &offset) != 1) {
+        if (sscanf(argv[1], "%llu%c", &offset, &dummy) != 1) {
                 ti->error = "Invalid offset";
                 return -EINVAL;
         }
@@ -953,13 +954,14 @@ static struct dm_dirty_log *create_dirty_log(struct dm_target *ti,
 {
         unsigned param_count;
         struct dm_dirty_log *dl;
+        char dummy;
 
         if (argc < 2) {
                 ti->error = "Insufficient mirror log arguments";
                 return NULL;
         }
 
-        if (sscanf(argv[1], "%u", &param_count) != 1) {
+        if (sscanf(argv[1], "%u%c", &param_count, &dummy) != 1) {
                 ti->error = "Invalid mirror log argument count";
                 return NULL;
         }
@@ -986,13 +988,14 @@ static int parse_features(struct mirror_set *ms, unsigned argc, char **argv,
 {
         unsigned num_features;
         struct dm_target *ti = ms->ti;
+        char dummy;
 
         *args_used = 0;
 
         if (!argc)
                 return 0;
 
-        if (sscanf(argv[0], "%u", &num_features) != 1) {
+        if (sscanf(argv[0], "%u%c", &num_features, &dummy) != 1) {
                 ti->error = "Invalid number of features";
                 return -EINVAL;
         }
@@ -1036,6 +1039,7 @@ static int mirror_ctr(struct dm_target *ti, unsigned int argc, char **argv)
         unsigned int nr_mirrors, m, args_used;
         struct mirror_set *ms;
         struct dm_dirty_log *dl;
+        char dummy;
 
         dl = create_dirty_log(ti, argc, argv, &args_used);
         if (!dl)
@@ -1044,7 +1048,7 @@ static int mirror_ctr(struct dm_target *ti, unsigned int argc, char **argv)
         argv += args_used;
         argc -= args_used;
 
-        if (!argc || sscanf(argv[0], "%u", &nr_mirrors) != 1 ||
+        if (!argc || sscanf(argv[0], "%u%c", &nr_mirrors, &dummy) != 1 ||
             nr_mirrors < 2 || nr_mirrors > DM_KCOPYD_MAX_REGIONS + 1) {
                 ti->error = "Invalid number of mirrors";
                 dm_dirty_log_destroy(dl);