From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S936227Ab1KJEAn (ORCPT ); Wed, 9 Nov 2011 23:00:43 -0500 Received: from cantor2.suse.de ([195.135.220.15]:44967 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S965879Ab1KJDq7 (ORCPT ); Wed, 9 Nov 2011 22:46:59 -0500 X-Mailbox-Line: From gregkh@clark.kroah.org Wed Nov 9 13:32:01 2011 Message-Id: <20111109213201.659005213@clark.kroah.org> User-Agent: quilt/0.48-16.4 Date: Wed, 09 Nov 2011 13:33:59 -0800 From: Greg KH To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: torvalds@linux-foundation.org, akpm@linux-foundation.org, alan@lxorguk.ukuu.org.uk, Takashi Iwai Subject: [192/264] ALSA: hda/realtek - Skip invalid digital out pins In-Reply-To: <20111109213508.GA3476@kroah.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.1-stable review patch. If anyone has any objections, please let me know. ------------------ From: Takashi Iwai commit 51e4152a969aa6d2306492ebf143932dcb535c9b upstream. Some BIOS report invalid pins as digital output pins. The driver checks the connection but it doesn't do it fully correctly, and it leaves some undefined value as the audio-out widget, which makes the driver spewing warnings. This patch fixes the issue. Reference: https://bugzilla.novell.com/show_bug.cgi?id=727348 Signed-off-by: Takashi Iwai Signed-off-by: Greg Kroah-Hartman --- sound/pci/hda/patch_realtek.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -1566,27 +1566,29 @@ static void alc_auto_init_digital(struct static void alc_auto_parse_digital(struct hda_codec *codec) { struct alc_spec *spec = codec->spec; - int i, err; + int i, err, nums; hda_nid_t dig_nid; /* support multiple SPDIFs; the secondary is set up as a slave */ + nums = 0; for (i = 0; i < spec->autocfg.dig_outs; i++) { hda_nid_t conn[4]; err = snd_hda_get_connections(codec, spec->autocfg.dig_out_pins[i], conn, ARRAY_SIZE(conn)); - if (err < 0) + if (err <= 0) continue; dig_nid = conn[0]; /* assume the first element is audio-out */ - if (!i) { + if (!nums) { spec->multiout.dig_out_nid = dig_nid; spec->dig_out_type = spec->autocfg.dig_out_type[0]; } else { spec->multiout.slave_dig_outs = spec->slave_dig_outs; - if (i >= ARRAY_SIZE(spec->slave_dig_outs) - 1) + if (nums >= ARRAY_SIZE(spec->slave_dig_outs) - 1) break; - spec->slave_dig_outs[i - 1] = dig_nid; + spec->slave_dig_outs[nums - 1] = dig_nid; } + nums++; } if (spec->autocfg.dig_in_pin) {