diff --git a/fs/jfs/jfs_dmap.c b/fs/jfs/jfs_dmap.c
index 24bd3591c8e0ec04507fc866157821c3ed50de29..5ecd79e5c74b33646e6be15fb666e5b60da10c9a 100644
--- a/fs/jfs/jfs_dmap.c
+++ b/fs/jfs/jfs_dmap.c
@@ -2945,6 +2945,9 @@ static void dbAdjTree(dmtree_t *tp, int leafno, int newval, bool is_ctl)
 	/* bubble the new value up the tree as required.
 	 */
 	for (k = 0; k < le32_to_cpu(tp->dmt_height); k++) {
+		if (lp == 0)
+			break;
+
 		/* get the index of the first leaf of the 4 leaf
 		 * group containing the specified leaf (leafno).
 		 */