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 76BBF225390; Tue, 26 Aug 2025 13:40:53 +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=1756215653; cv=none; b=PvZx3aQsq7wJ7DzZKh0lI+Js1jh+RQE+ynr12GbZiJd7yX3ccsdl1ATtIEmM13sfYM4kzJjd2yWvzIPY7ACadt/fv5H3CHD9PWFkdXuBjWgyg77x2swPwbySoMRP75wfCRTBhecrWdF243u2TXFPNZ1Azp5WBdYAFXWTDYzX1qs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756215653; c=relaxed/simple; bh=/hG0C74Nlq9FgFEP4fcdTcFhTS/XTIdtlHmSNbSNFKo=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=FgFTlHfN8SIS/6FGZo/KJSCXc2IjEFeqNAYrfVOMdMMslAI6j0XRORJ/7wjdmoO/14uJj7Otw03LVtdTckqOVbIXFIPechLO/D1hFc3U5/DxRIqODkQGG9JfvmKxNcyUeD5WZ42mw0VD2ujKsn3FEdxBaT+EMBCqQcrfFXjlSCk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=UPfUNyyn; 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="UPfUNyyn" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9E3C5C4CEF1; Tue, 26 Aug 2025 13:40:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1756215653; bh=/hG0C74Nlq9FgFEP4fcdTcFhTS/XTIdtlHmSNbSNFKo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=UPfUNyynwLqIt5AacCh0JWkgHRDmGZ5cLsfDLMidfPYlnlFR4BOV1KKKDuzY4VnXc BmozRx9k79wAuWbb7GbZMTKGBV2CYgFLSltNmExAhoQrPZXuSiF4Hf5+l9eLrurQoV vOjc0po+lrPMqBNzJOwp264ReBdNpG14o3Yb6f00= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, =?UTF-8?q?Giedrius=20Trainavi=C4=8Dius?= , Kuninori Morimoto , Mark Brown , Sasha Levin Subject: [PATCH 5.15 114/644] ASoC: soc-dai: tidyup return value of snd_soc_xlate_tdm_slot_mask() Date: Tue, 26 Aug 2025 13:03:25 +0200 Message-ID: <20250826110949.352368609@linuxfoundation.org> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20250826110946.507083938@linuxfoundation.org> References: <20250826110946.507083938@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Kuninori Morimoto [ Upstream commit f4c77d5af0a9cd0ee22617baa8b49d0e151fbda7 ] commit 7f1186a8d738661 ("ASoC: soc-dai: check return value at snd_soc_dai_set_tdm_slot()") checks return value of xlate_tdm_slot_mask() (A1)(A2). /* * ... (Y) * TDM mode can be disabled by passing 0 for @slots. In this case @tx_mask, * @rx_mask and @slot_width will be ignored. * ... */ int snd_soc_dai_set_tdm_slot(...) { ... if (...) (A1) ret = dai->driver->ops->xlate_tdm_slot_mask(...); else (A2) ret = snd_soc_xlate_tdm_slot_mask(...); if (ret) goto err; ... } snd_soc_xlate_tdm_slot_mask() (A2) will return -EINVAL if slots was 0 (X), but snd_soc_dai_set_tdm_slot() allow to use it (Y). (A) static int snd_soc_xlate_tdm_slot_mask(...) { ... if (!slots) (X) return -EINVAL; ... } Call xlate_tdm_slot_mask() only if slots was non zero. Reported-by: Giedrius Trainavičius Closes: https://lore.kernel.org/r/CAMONXLtSL7iKyvH6w=CzPTxQdBECf++hn8RKL6Y4=M_ou2YHow@mail.gmail.com Fixes: 7f1186a8d738661 ("ASoC: soc-dai: check return value at snd_soc_dai_set_tdm_slot()") Signed-off-by: Kuninori Morimoto Link: https://patch.msgid.link/8734cdfx59.wl-kuninori.morimoto.gx@renesas.com Signed-off-by: Mark Brown Signed-off-by: Sasha Levin --- sound/soc/soc-dai.c | 16 +++++++++------- 1 file changed, 9 insertions(+), 7 deletions(-) diff --git a/sound/soc/soc-dai.c b/sound/soc/soc-dai.c index 05a9404544de..8165f5537043 100644 --- a/sound/soc/soc-dai.c +++ b/sound/soc/soc-dai.c @@ -269,13 +269,15 @@ int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai, { int ret = -ENOTSUPP; - if (dai->driver->ops && - dai->driver->ops->xlate_tdm_slot_mask) - ret = dai->driver->ops->xlate_tdm_slot_mask(slots, &tx_mask, &rx_mask); - else - ret = snd_soc_xlate_tdm_slot_mask(slots, &tx_mask, &rx_mask); - if (ret) - goto err; + if (slots) { + if (dai->driver->ops && + dai->driver->ops->xlate_tdm_slot_mask) + ret = dai->driver->ops->xlate_tdm_slot_mask(slots, &tx_mask, &rx_mask); + else + ret = snd_soc_xlate_tdm_slot_mask(slots, &tx_mask, &rx_mask); + if (ret) + goto err; + } dai->tx_mask = tx_mask; dai->rx_mask = rx_mask; -- 2.39.5