diff --git a/sound/soc/codecs/hdac_hdmi.c b/sound/soc/codecs/hdac_hdmi.c
index b999fb2a463bc9de696604f22f7185127690279a..e6dc4cd037d3179f73c7c1eaa341b604a4f2bffe 100644
--- a/sound/soc/codecs/hdac_hdmi.c
+++ b/sound/soc/codecs/hdac_hdmi.c
@@ -415,7 +415,7 @@ static int hdac_hdmi_parse_and_map_nid(struct hdac_ext_device *edev)
 	int cvt_nid = 0, pin_nid = 0;
 
 	num_nodes = snd_hdac_get_sub_nodes(hdac, hdac->afg, &nid);
-	if (!nid || num_nodes < 0) {
+	if (!nid || num_nodes <= 0) {
 		dev_warn(&hdac->dev, "HDMI: failed to get afg sub nodes\n");
 		return -EINVAL;
 	}