Merge tag 'usercopy-v5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees...

[platform/kernel/linux-rpi.git] / ipc / sem.c

diff --git a/ipc/sem.c b/ipc/sem.c
index 7da4504..ec97a70 100644 (file)
--- a/ipc/sem.c
+++ b/ipc/sem.c
@@ -1852,7 +1852,8 @@ static struct sem_undo *__lookup_undo(struct sem_undo_list *ulp, int semid)
 {
        struct sem_undo *un;
 
-       list_for_each_entry_rcu(un, &ulp->list_proc, list_proc) {
+       list_for_each_entry_rcu(un, &ulp->list_proc, list_proc,
+                               spin_is_locked(&ulp->lock)) {
                if (un->semid == semid)
                        return un;
        }