ALSA: hda - No widget selection for volume knob widgets in proc output

Volume-knob widgets have no widget selection although they have widget
connections.  Thus, the connection list in the proc output shouldn't
contain the selection (*).
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

sound/pci/hda/hda_proc.c

@@ -399,7 +399,8 @@ static void print_conn_list(struct snd_info_buffer *buffer,
 {
 	int c, curr = -1;
 
-	if (conn_len > 1 && wid_type != AC_WID_AUD_MIX)
+	if (conn_len > 1 && wid_type != AC_WID_AUD_MIX &&
+	    wid_type != AC_WID_VOL_KNB)
 		curr = snd_hda_codec_read(codec, nid, 0,
 					  AC_VERB_GET_CONNECT_SEL, 0);
 	snd_iprintf(buffer, "  Connection: %d\n", conn_len);