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-rw-r--r--kernel/pid.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/pid.c b/kernel/pid.c
index 89548d35eefb..6ce3a95968f7 100644
--- a/kernel/pid.c
+++ b/kernel/pid.c
@@ -213,6 +213,8 @@ struct pid *alloc_pid(struct pid_namespace *ns)
for (type = 0; type < PIDTYPE_MAX; ++type)
INIT_HLIST_HEAD(&pid->tasks[type]);
+ init_waitqueue_head(&pid->wait_pidfd);
+
upid = pid->numbers + ns->level;
spin_lock_irq(&pidmap_lock);
if (!(ns->pid_allocated & PIDNS_ADDING))