From: Takashi Iwai <tiwai@suse.de>
Date: Thu, 7 Apr 2011 12:55:57 +0000 (+0200)
Subject: ALSA: hda - Don't query connections for widgets have no connections
X-Git-Tag: v2.6.39-rc3~7^2^2
X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=cd9abc7a22806f2340b853058a634b0e32a9f47c;p=~emulex%2Finfiniband.git

ALSA: hda - Don't query connections for widgets have no connections

Fixes the kernel warnings with IDT codecs like
    hda_codec: connection list not available for 0x1e

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---

diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
index 05fcd60cc46..a2f57e3581e 100644
--- a/sound/pci/hda/patch_sigmatel.c
+++ b/sound/pci/hda/patch_sigmatel.c
@@ -3408,6 +3408,9 @@ static int get_connection_index(struct hda_codec *codec, hda_nid_t mux,
 	hda_nid_t conn[HDA_MAX_NUM_INPUTS];
 	int i, nums;
 
+	if (!(get_wcaps(codec, mux) & AC_WCAP_CONN_LIST))
+		return -1;
+
 	nums = snd_hda_get_connections(codec, mux, conn, ARRAY_SIZE(conn));
 	for (i = 0; i < nums; i++)
 		if (conn[i] == nid)