bcache: Fix for can_attach_cache()

Signed-off-by: Nicholas Swenson <nks@daterainc.com>
Signed-off-by: Kent Overstreet <kmo@daterainc.com>
diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c
index dec15cd..c57bfa0 100644
--- a/drivers/md/bcache/super.c
+++ b/drivers/md/bcache/super.c
@@ -1676,7 +1676,7 @@
 static bool can_attach_cache(struct cache *ca, struct cache_set *c)
 {
 	return ca->sb.block_size	== c->sb.block_size &&
-		ca->sb.bucket_size	== c->sb.block_size &&
+		ca->sb.bucket_size	== c->sb.bucket_size &&
 		ca->sb.nr_in_set	== c->sb.nr_in_set;
 }