--- zzzz-none-000/linux-4.4.271/sound/core/pcm.c	2021-06-03 06:22:09.000000000 +0000
+++ hawkeye-5590-750/linux-4.4.271/sound/core/pcm.c	2023-04-19 10:22:30.000000000 +0000
@@ -747,6 +747,9 @@
 		}
 		substream->group = &substream->self_group;
 		spin_lock_init(&substream->self_group.lock);
+#ifdef CONFIG_AUDIO_QGKI
+		spin_lock_init(&substream->runtime_lock);
+#endif
 		mutex_init(&substream->self_group.mutex);
 		INIT_LIST_HEAD(&substream->self_group.substreams);
 		list_add_tail(&substream->link_list, &substream->self_group.substreams);
@@ -1017,9 +1020,15 @@
 void snd_pcm_detach_substream(struct snd_pcm_substream *substream)
 {
 	struct snd_pcm_runtime *runtime;
+#ifdef CONFIG_AUDIO_QGKI
+	unsigned long flags = 0;
+#endif
 
 	if (PCM_RUNTIME_CHECK(substream))
 		return;
+#ifdef CONFIG_AUDIO_QGKI
+	spin_lock_irqsave(&substream->runtime_lock, flags);
+#endif
 	runtime = substream->runtime;
 	if (runtime->private_free != NULL)
 		runtime->private_free(runtime);
@@ -1038,6 +1047,9 @@
 	put_pid(substream->pid);
 	substream->pid = NULL;
 	substream->pstr->substream_opened--;
+#ifdef CONFIG_AUDIO_QGKI
+	spin_unlock_irqrestore(&substream->runtime_lock, flags);
+#endif
 }
 
 static ssize_t show_pcm_class(struct device *dev,