diff --git a/kernel/pid.c b/kernel/pid.c
index de9af600006f8cd73020b7d25b3dc4fc28be5eab..f2c6a68250989d4223b788bd368b6dd7a80e4e7d 100644
--- a/kernel/pid.c
+++ b/kernel/pid.c
@@ -331,7 +331,7 @@ struct pid *alloc_pid(struct pid_namespace *ns)
 	return pid;
 
 out_unlock:
-	spin_unlock(&pidmap_lock);
+	spin_unlock_irq(&pidmap_lock);
 out_free:
 	while (++i <= ns->level)
 		free_pidmap(pid->numbers + i);