diff --git a/include/sound/pcm_params.h b/include/sound/pcm_params.h
index 2dd37cada7c0..888a833d3b00 100644
--- a/include/sound/pcm_params.h
+++ b/include/sound/pcm_params.h
@@ -254,11 +254,13 @@ static inline int snd_interval_empty(const struct snd_interval *i)
 static inline int snd_interval_single(const struct snd_interval *i)
 {
 	return (i->min == i->max || 
-		(i->min + 1 == i->max && i->openmax));
+		(i->min + 1 == i->max && (i->openmin || i->openmax)));
 }
 
 static inline int snd_interval_value(const struct snd_interval *i)
 {
+	if (i->openmin && !i->openmax)
+		return i->max;
 	return i->min;
 }