1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/md/dm-snap.c b/drivers/md/dm-snap.c
index 53f4063f7ea4..9cb392b3e920 100644
--- a/drivers/md/dm-snap.c
+++ b/drivers/md/dm-snap.c
@@ -673,6 +673,11 @@ static int snapshot_ctr(struct dm_target *ti, unsigned int argc, char **argv)
         bio_list_init(&s->queued_bios);
         INIT_WORK(&s->queued_bios_work, flush_queued_bios);
 
+        if (!s->store->chunk_size) {
+                ti->error = "Chunk size not set";
+                goto bad_load_and_register;
+        }
+
         /* Add snapshot to the list of snapshots for this origin */
         /* Exceptions aren't triggered till snapshot_resume() is called */
         if (register_snapshot(s)) {