1 files changed, 3 insertions, 1 deletions

diff --git a/litmus/ikglp_lock.c b/litmus/ikglp_lock.c
index 3d79e41b42df..3fd760799a75 100644
--- a/litmus/ikglp_lock.c
+++ b/litmus/ikglp_lock.c
@@ -1401,7 +1401,9 @@ int ikglp_unlock(struct litmus_lock* l)
                                                                 struct nested_info, hp_binheap_node);
                         ++count;
                 }
-                litmus->decrease_prio(t, NULL);
+                if (count) {
+                        litmus->decrease_prio(t, NULL);
+                }
                 WARN_ON(count > 2); // should not be greater than 2.  only local fq inh and donation can be possible.
         }
         raw_spin_unlock(&tsk_rt(t)->hp_blocked_tasks_lock);