diff --git a/sound/pci/echoaudio/echoaudio.c b/sound/pci/echoaudio/echoaudio.c
index e81f42811f45..6aeb99aa2414 100644
--- a/sound/pci/echoaudio/echoaudio.c
+++ b/sound/pci/echoaudio/echoaudio.c
@@ -721,7 +721,7 @@ static int pcm_prepare(struct snd_pcm_substream *substream)
 	spin_lock_irq(&chip->lock);
 
 	if (snd_BUG_ON(!is_pipe_allocated(chip, pipe_index))) {
-		spin_unlock(&chip->lock);
+		spin_unlock_irq(&chip->lock);
 		return -EINVAL;
 	}