diff -Naur linux-2.6.0-test9-udm1/drivers/md/dm-snap.c linux-2.6.0-test9-evms-2.2.0/drivers/md/dm-snap.c
--- linux-2.6.0-test9-udm1/drivers/md/dm-snap.c	2003-10-20 11:22:17.000000000 -0500
+++ linux-2.6.0-test9-evms-2.2.0/drivers/md/dm-snap.c	2003-10-20 11:21:29.000000000 -0500
@@ -1076,14 +1076,12 @@
 int do_origin(struct dm_dev *origin, struct bio *bio)
 {
 	struct origin *o;
-	int r;
+	int r = 1;
 
 	down_read(&_origins_lock);
 	o = __lookup_origin(origin->bdev);
-	if (!o)
-		BUG();
-
-	r = __origin_write(&o->snapshots, bio);
+	if (o)
+		r = __origin_write(&o->snapshots, bio);
 	up_read(&_origins_lock);
 
 	return r;