From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 5859D46EF9A; Tue, 21 Jul 2026 19:52:00 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784663521; cv=none; b=imDOaZD+0JCaiMw1b9AAbtPzysRPe09RYbosxLUeWWOuR5oj7d7Yw7AB34KdV/QOMiy3ZEUo9FZuocY9vdvmsM5Rvgsq/JMJWpEoJRzpCPw9uNNVQP6RusAPE/X7aQ6FEP7h2MxfGF0QPM7F5kx4Yv7Lyea+u9prOV0fEVo6uPU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784663521; c=relaxed/simple; bh=MXcg+7ZldL9krkb1e/GTSTTsaXtJsNN4OSgqNw9qiyE=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=YKDkv+r0I/7MDkuFJhA8pCa34GoLpIsUdGMWDc9JQw0mlI9UqgUiYWxRIk97fIWKV0FkQ4RdguVr4LWU4qT1vf+lHlVZ/ULLTBLV9PLOTByH7MZWtrzkCe1aX7gBsFYbfmOpnfmM7M3KajxGmNnZdxjDnqJ1D5mUVhLSOmpAMiY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=OfHh1XqT; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="OfHh1XqT" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B87001F00A3F; Tue, 21 Jul 2026 19:51:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1784663520; bh=0qg79EoZ9aeeKe4A6rACgN76A9w9XcQaPWVWvuPh24g=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=OfHh1XqT3IWbncVB/E8kIwzPBOHVJmbCbLvyiUWZgjVwZif0ezsrFe2XIryIREbTe MNxMDKVD7+wBKyaRL//gogHest++qjL0ysxIe32mXtQNf3gCOvrUqCGL2X2YFreHFk xfs5mWAEjA9ELq2kKoMH0zflm7yqnYR4rtmW2vhc= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, =?UTF-8?q?C=C3=A1ssio=20Gabriel?= , Mark Brown Subject: [PATCH 6.12 0854/1276] ASoC: mediatek: mt8192: Release reserved memory on cleanup Date: Tue, 21 Jul 2026 17:21:37 +0200 Message-ID: <20260721152505.162395171@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260721152446.065700225@linuxfoundation.org> References: <20260721152446.065700225@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 6.12-stable review patch. If anyone has any objections, please let me know. ------------------ From: Cássio Gabriel commit 965e17ae6751c5d3302430c8ebd650e72d45a85f upstream. The MT8192 AFE probe calls of_reserved_mem_device_init() and falls back to preallocated buffers when no reserved memory region is available. When the reserved memory assignment succeeds, however, the driver never releases it. Register a devm cleanup action after a successful reserved-memory assignment so the assignment is released on probe failure and driver unbind. Fixes: ec4a10ca4a68 ("ASoC: mediatek: use reserved memory or enable buffer pre-allocation") Cc: stable@vger.kernel.org Signed-off-by: Cássio Gabriel Link: https://patch.msgid.link/20260527-asoc-mt8192-probe-cleanup-v1-1-1bb834d05b72@gmail.com Signed-off-by: Mark Brown Signed-off-by: Greg Kroah-Hartman --- sound/soc/mediatek/mt8192/mt8192-afe-pcm.c | 9 +++++++++ 1 file changed, 9 insertions(+) --- a/sound/soc/mediatek/mt8192/mt8192-afe-pcm.c +++ b/sound/soc/mediatek/mt8192/mt8192-afe-pcm.c @@ -2155,6 +2155,11 @@ static const dai_register_cb dai_registe mt8192_dai_memif_register, }; +static void mt8192_afe_release_reserved_mem(void *data) +{ + of_reserved_mem_device_release(data); +} + static int mt8192_afe_pcm_dev_probe(struct platform_device *pdev) { struct mtk_base_afe *afe; @@ -2185,6 +2190,10 @@ static int mt8192_afe_pcm_dev_probe(stru if (ret) { dev_info(dev, "no reserved memory found, pre-allocating buffers instead\n"); afe->preallocate_buffers = true; + } else { + ret = devm_add_action_or_reset(dev, mt8192_afe_release_reserved_mem, dev); + if (ret) + return ret; } /* init audio related clock */