1 files changed, 2 insertions, 0 deletions

diff --git a/kernel/fork.c b/kernel/fork.c
index 88ef51ca84d..341965b0ab1 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -553,6 +553,8 @@ void mm_release(struct task_struct *tsk, struct mm_struct *mm)
                 tsk->compat_robust_list = NULL;
         }
 #endif
+        if (unlikely(!list_empty(&tsk->pi_state_list)))
+                exit_pi_state_list(tsk);
 #endif
 
         /* Get rid of any cached register state */