diff --git a/fs/jfs/jfs_dmap.c b/fs/jfs/jfs_dmap.c
index a841cf2..eb7c3ba 100644
--- a/fs/jfs/jfs_dmap.c
+++ b/fs/jfs/jfs_dmap.c
@@ -190,9 +190,9 @@ static bool check_dmapctl(struct dmapctl *dcp)
 				nleafs);
 			return false;
 		}
-	} else if (unlikely(budmin < BUDMIN)) {
-		jfs_err("dmapctl: invalid budmin %d (min %d)",
-			budmin, BUDMIN);
+	} else if (unlikely(budmin < BUDMIN || budmin > L2MAXL2SIZE)) {
+		jfs_err("dmapctl: invalid budmin %d (valid range %d-%d)",
+			budmin, BUDMIN, L2MAXL2SIZE);
 		return false;
 	}