From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:49621 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934343AbcA0SNM (ORCPT ); Wed, 27 Jan 2016 13:13:12 -0500 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Takashi Iwai Subject: [PATCH 4.4 27/67] ALSA: hda - Fix missing module loading with model=generic option Date: Wed, 27 Jan 2016 10:12:21 -0800 Message-Id: <20160127180911.224228636@linuxfoundation.org> In-Reply-To: <20160127180907.419868641@linuxfoundation.org> References: <20160127180907.419868641@linuxfoundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15 Sender: stable-owner@vger.kernel.org List-ID: 4.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Takashi Iwai commit bca8e988043e39483afd7872a2641f03ed7201a6 upstream. When the generic codec driver is specified via model option or such, the hda driver doesn't try to load the generic driver module but still loads the codec-specific driver, and this ends up with the binding failure. This patch fixes it by moving the generic module request in the common helper code. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=111021 Signed-off-by: Takashi Iwai Signed-off-by: Greg Kroah-Hartman --- sound/pci/hda/hda_bind.c | 42 ++++++++++++++++++++++++++++++++---------- 1 file changed, 32 insertions(+), 10 deletions(-) --- a/sound/pci/hda/hda_bind.c +++ b/sound/pci/hda/hda_bind.c @@ -174,14 +174,40 @@ static inline bool codec_probed(struct h return device_attach(hda_codec_dev(codec)) > 0 && codec->preset; } -/* try to auto-load and bind the codec module */ -static void codec_bind_module(struct hda_codec *codec) +/* try to auto-load codec module */ +static void request_codec_module(struct hda_codec *codec) { #ifdef MODULE char modalias[32]; + const char *mod = NULL; + + switch (codec->probe_id) { + case HDA_CODEC_ID_GENERIC_HDMI: +#if IS_MODULE(CONFIG_SND_HDA_CODEC_HDMI) + mod = "snd-hda-codec-hdmi"; +#endif + break; + case HDA_CODEC_ID_GENERIC: +#if IS_MODULE(CONFIG_SND_HDA_GENERIC) + mod = "snd-hda-codec-generic"; +#endif + break; + default: + snd_hdac_codec_modalias(&codec->core, modalias, sizeof(modalias)); + mod = modalias; + break; + } + + if (mod) + request_module(mod); +#endif /* MODULE */ +} - snd_hdac_codec_modalias(&codec->core, modalias, sizeof(modalias)); - request_module(modalias); +/* try to auto-load and bind the codec module */ +static void codec_bind_module(struct hda_codec *codec) +{ +#ifdef MODULE + request_codec_module(codec); if (codec_probed(codec)) return; #endif @@ -218,17 +244,13 @@ static int codec_bind_generic(struct hda if (is_likely_hdmi_codec(codec)) { codec->probe_id = HDA_CODEC_ID_GENERIC_HDMI; -#if IS_MODULE(CONFIG_SND_HDA_CODEC_HDMI) - request_module("snd-hda-codec-hdmi"); -#endif + request_codec_module(codec); if (codec_probed(codec)) return 0; } codec->probe_id = HDA_CODEC_ID_GENERIC; -#if IS_MODULE(CONFIG_SND_HDA_GENERIC) - request_module("snd-hda-codec-generic"); -#endif + request_codec_module(codec); if (codec_probed(codec)) return 0; return -ENODEV;