diff --git a/drivers/md/dm-snap.c b/drivers/md/dm-snap.c
index b8e4d31124ea..751ec5ea1dbb 100644
--- a/drivers/md/dm-snap.c
+++ b/drivers/md/dm-snap.c
@@ -859,7 +859,8 @@ static uint32_t __minimum_chunk_size(struct origin *o)
 
 	if (o)
 		list_for_each_entry(snap, &o->snapshots, list)
-			chunk_size = min(chunk_size, snap->store->chunk_size);
+			chunk_size = min_not_zero(chunk_size,
+						  snap->store->chunk_size);
 
 	return (uint32_t) chunk_size;
 }
diff --git a/drivers/md/dm-verity-verify-sig.c b/drivers/md/dm-verity-verify-sig.c
index 29385dc470d5..db61a1f43ae9 100644
--- a/drivers/md/dm-verity-verify-sig.c
+++ b/drivers/md/dm-verity-verify-sig.c
@@ -15,7 +15,7 @@
 #define DM_VERITY_VERIFY_ERR(s) DM_VERITY_ROOT_HASH_VERIFICATION " " s
 
 static bool require_signatures;
-module_param(require_signatures, bool, false);
+module_param(require_signatures, bool, 0444);
 MODULE_PARM_DESC(require_signatures,
 		"Verify the roothash of dm-verity hash tree");