--- a/include/sound/pcm.h	2022-03-30 11:08:46.127742500 +0800
+++ b/include/sound/pcm.h	2022-03-30 11:15:41.379069200 +0800
@@ -401,6 +401,7 @@ struct snd_pcm_runtime {
 	wait_queue_head_t tsleep;	/* transfer sleep */
 	struct fasync_struct *fasync;
 	bool stop_operating;		/* sync_stop will be called */
+	bool trylock;			/* trylock buffer_mutex */
 	struct mutex buffer_mutex;	/* protect for buffer changes */
 
 	/* -- private section -- */
--- a/sound/core/oss/pcm_oss.c	2022-03-30 11:12:58.710516400 +0800
+++ b/sound/core/oss/pcm_oss.c	2022-03-30 11:33:01.405363200 +0800
@@ -1105,15 +1105,20 @@ static int snd_pcm_oss_change_params(str
 				     bool trylock)
 {
 	struct snd_pcm_runtime *runtime = substream->runtime;
+	bool save = false;
 	int err;
 
 	if (trylock) {
 		if (!(mutex_trylock(&runtime->oss.params_lock)))
 			return -EAGAIN;
+		save = runtime->trylock;
+		runtime->trylock = true;
 	} else if (mutex_lock_interruptible(&runtime->oss.params_lock))
 		return -ERESTARTSYS;
 
 	err = snd_pcm_oss_change_params_locked(substream);
+	if (trylock)
+		runtime->trylock = save;
 	mutex_unlock(&runtime->oss.params_lock);
 	return err;
 }
--- a/sound/core/pcm_native.c	2022-03-30 11:10:49.587363300 +0800
+++ b/sound/core/pcm_native.c	2022-03-30 11:37:40.650919000 +0800
@@ -702,7 +702,12 @@ static int snd_pcm_hw_params(struct snd_
 	if (PCM_RUNTIME_CHECK(substream))
 		return -ENXIO;
 	runtime = substream->runtime;
-	mutex_lock(&runtime->buffer_mutex);
+	if (runtime->trylock) {
+		if (!mutex_trylock(&runtime->buffer_mutex))
+			return -EAGAIN;
+	} else {
+		mutex_lock(&runtime->buffer_mutex);
+	}
 	snd_pcm_stream_lock_irq(substream);
 	switch (runtime->status->state) {
 	case SNDRV_PCM_STATE_OPEN: