From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3B0282DA76C for ; Fri, 1 May 2026 10:32:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777631551; cv=none; b=J+XlxAJXYjmaQY7uztfRXeYZQvpafP0QSPnqrSPPZ8i0aM1RKk72+E+ES//L+wqjsej5SjVALKGOQm6c+7g/lB5eVN7axWj4QwK0pMbuaNoT3huJOOii4+Ydabcp/oSIT+3OStLg/KSbkfCB8GU8ZJX5mG8j3plscID3WJEGi2Y= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777631551; c=relaxed/simple; bh=sE7kr56tDoW9BBpT6phWDNDe2meX0GBWp2fSmvVzlMo=; h=Subject:To:Cc:From:Date:Message-ID:MIME-Version:Content-Type; b=NusL3E24VNaSFsjsh5rZhSVWMWTuqrBka6629+wnhWTSYFKz8DQjI5JfNIqruY0dIbEC2lcWTu8ZY+Xz6npwAeXYFoMNMTxyzdei3Q5fkxIG/ElWu4w50jc3gCNkaFOvM28tefchww291uugghLgmFVUrpU6NrlmVgTFK+5uQ/g= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=nD1quHzS; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="nD1quHzS" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B7A44C2BCB4; Fri, 1 May 2026 10:32:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1777631551; bh=sE7kr56tDoW9BBpT6phWDNDe2meX0GBWp2fSmvVzlMo=; h=Subject:To:Cc:From:Date:From; b=nD1quHzSQsxpxwa+UCFh79uI5k+y3/cqwZMo2rzIdPrCV1Y/2gzG0dcm+0/7HiY3m lsYr5/1jZ7KdfusWDw3bTL32A7Ni7xZ+9Y5umyDsUrd3zQX2b3bpGh8Y34Hhc3VP4J pZ1toMaMbGRGOXgD+G2wmICed0RydRkGG09BR5FI= Subject: FAILED: patch "[PATCH] ALSA: aoa: Skip devices with no codecs in i2sbus_resume()" failed to apply to 6.6-stable tree To: thorsten.blum@linux.dev,tiwai@suse.de Cc: From: Date: Fri, 01 May 2026 12:32:20 +0200 Message-ID: <2026050120-repurpose-unused-d87c@gregkh> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit The patch below does not apply to the 6.6-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to . To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.6.y git checkout FETCH_HEAD git cherry-pick -x fd7df93013c5118812e63a52635dc6c3a805a1de # git commit -s git send-email --to '' --in-reply-to '2026050120-repurpose-unused-d87c@gregkh' --subject-prefix 'PATCH 6.6.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From fd7df93013c5118812e63a52635dc6c3a805a1de Mon Sep 17 00:00:00 2001 From: Thorsten Blum Date: Tue, 10 Mar 2026 11:29:20 +0100 Subject: [PATCH] ALSA: aoa: Skip devices with no codecs in i2sbus_resume() In i2sbus_resume(), skip devices with an empty codec list, which avoids using an uninitialized 'sysclock_factor' in the 32-bit format path in i2sbus_pcm_prepare(). In i2sbus_pcm_prepare(), replace two list_for_each_entry() loops with a single list_first_entry() now that the codec list is guaranteed to be non-empty by all callers. Fixes: f3d9478b2ce4 ("[ALSA] snd-aoa: add snd-aoa") Cc: stable@vger.kernel.org Signed-off-by: Thorsten Blum Link: https://patch.msgid.link/20260310102921.210109-3-thorsten.blum@linux.dev Signed-off-by: Takashi Iwai diff --git a/sound/aoa/soundbus/i2sbus/core.c b/sound/aoa/soundbus/i2sbus/core.c index f974b96e98cd..22c956267f4e 100644 --- a/sound/aoa/soundbus/i2sbus/core.c +++ b/sound/aoa/soundbus/i2sbus/core.c @@ -405,6 +405,9 @@ static int i2sbus_resume(struct macio_dev* dev) int err, ret = 0; list_for_each_entry(i2sdev, &control->list, item) { + if (list_empty(&i2sdev->sound.codec_list)) + continue; + /* reset i2s bus format etc. */ i2sbus_pcm_prepare_both(i2sdev); diff --git a/sound/aoa/soundbus/i2sbus/pcm.c b/sound/aoa/soundbus/i2sbus/pcm.c index aff99003d833..97c807e67d56 100644 --- a/sound/aoa/soundbus/i2sbus/pcm.c +++ b/sound/aoa/soundbus/i2sbus/pcm.c @@ -383,6 +383,9 @@ static int i2sbus_pcm_prepare(struct i2sbus_dev *i2sdev, int in) /* set stop command */ command->command = cpu_to_le16(DBDMA_STOP); + cii = list_first_entry(&i2sdev->sound.codec_list, + struct codec_info_item, list); + /* ok, let's set the serial format and stuff */ switch (runtime->format) { /* 16 bit formats */ @@ -390,13 +393,7 @@ static int i2sbus_pcm_prepare(struct i2sbus_dev *i2sdev, int in) case SNDRV_PCM_FORMAT_U16_BE: /* FIXME: if we add different bus factors we need to * do more here!! */ - bi.bus_factor = 0; - list_for_each_entry(cii, &i2sdev->sound.codec_list, list) { - bi.bus_factor = cii->codec->bus_factor; - break; - } - if (!bi.bus_factor) - return -ENODEV; + bi.bus_factor = cii->codec->bus_factor; input_16bit = 1; break; case SNDRV_PCM_FORMAT_S32_BE: @@ -410,10 +407,7 @@ static int i2sbus_pcm_prepare(struct i2sbus_dev *i2sdev, int in) return -EINVAL; } /* we assume all sysclocks are the same! */ - list_for_each_entry(cii, &i2sdev->sound.codec_list, list) { - bi.sysclock_factor = cii->codec->sysclock_factor; - break; - } + bi.sysclock_factor = cii->codec->sysclock_factor; if (clock_and_divisors(bi.sysclock_factor, bi.bus_factor,