From nobody Fri Nov 29 02:32:16 2024 Received: from ssh248.corpemail.net (ssh248.corpemail.net [210.51.61.248]) (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 7E95F144D0A; Wed, 25 Sep 2024 08:01:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=210.51.61.248 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727251314; cv=none; b=bSx8a2gAKszulw5nqBbbzSjGAcUPUw58tk5AEkZYV7VFY8JenSgMi0YCtJ512N9G9jcUdfvxEZFrK9cVnEpYyynPjoQZx+pSUYXsAYUJnR42pK5TZwsyzVpwk8MhCVje8UkpwovdKXbfiaSkO1pzNADQH9TkPvvijX/0Ymms74I= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727251314; c=relaxed/simple; bh=xIfw0yRqU10+8BUYFKO706Rgt3ulp51hvcjuux3TZ3o=; h=From:To:CC:Subject:Date:Message-ID:MIME-Version:Content-Type; b=ETryroOoU4B0tMgVMU6IAMGNAo6w7byAcwTWgeHHei3shtr2DKjhCo6FmUIrcRqcRvCmYSt3hzOZzI3BNJTY1i66FuU3ENwzReguxHTdTBdpeZ6SwKl7dgmpVmFTSO8hbPX0N+0HD/uP1zTiqPGLyvKSpMoSv72MFfhvKoQbSHg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=inspur.com; spf=pass smtp.mailfrom=inspur.com; arc=none smtp.client-ip=210.51.61.248 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=inspur.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=inspur.com Received: from ssh248.corpemail.net by ssh248.corpemail.net ((D)) with ASMTP (SSL) id WJA00132; Wed, 25 Sep 2024 16:00:32 +0800 Received: from localhost.localdomain (10.94.16.163) by jtjnmail201601.home.langchao.com (10.100.2.1) with Microsoft SMTP Server id 15.1.2507.39; Wed, 25 Sep 2024 16:00:33 +0800 From: Charles Han To: , CC: , , , , , , , , Charles Han Subject: [PATCH] ASoC: intel: sof_sdw: Add check devm_kasprintf() returned value Date: Wed, 25 Sep 2024 16:00:30 +0800 Message-ID: <20240925080030.11262-1-hanchunchao@inspur.com> X-Mailer: git-send-email 2.31.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable tUid: 2024925160032c5fe208e17589d9e2dc9fa15e5d58d53 X-Abuse-Reports-To: service@corp-email.com Abuse-Reports-To: service@corp-email.com X-Complaints-To: service@corp-email.com X-Report-Abuse-To: service@corp-email.com Content-Type: text/plain; charset="utf-8" devm_kasprintf() can return a NULL pointer on failure but this returned value is not checked. Fixes: b359760d95ee ("ASoC: intel: sof_sdw: Add simple DAI link creation he= lper") Signed-off-by: Charles Han --- sound/soc/intel/boards/sof_sdw.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/sound/soc/intel/boards/sof_sdw.c b/sound/soc/intel/boards/sof_= sdw.c index d258728d64cf..26917f6f15cf 100644 --- a/sound/soc/intel/boards/sof_sdw.c +++ b/sound/soc/intel/boards/sof_sdw.c @@ -919,6 +919,9 @@ static int create_ssp_dailinks(struct snd_soc_card *car= d, char *cpu_dai_name =3D devm_kasprintf(dev, GFP_KERNEL, "SSP%d Pin", i); char *codec_name =3D devm_kasprintf(dev, GFP_KERNEL, "i2c-%s:0%d", ssp_info->acpi_id, j++); + if (!name || !cpu_dai_name || !codec_name) + return -ENOMEM; + int playback =3D ssp_info->dais[0].direction[SNDRV_PCM_STREAM_PLAYBACK]; int capture =3D ssp_info->dais[0].direction[SNDRV_PCM_STREAM_CAPTURE]; =20 @@ -985,6 +988,9 @@ static int create_hdmi_dailinks(struct snd_soc_card *ca= rd, for (i =3D 0; i < hdmi_num; i++) { char *name =3D devm_kasprintf(dev, GFP_KERNEL, "iDisp%d", i + 1); char *cpu_dai_name =3D devm_kasprintf(dev, GFP_KERNEL, "iDisp%d Pin", i = + 1); + if (!name || !cpu_dai_name) + return -ENOMEM; + char *codec_name, *codec_dai_name; =20 if (intel_ctx->hdmi.idisp_codec) { @@ -996,6 +1002,9 @@ static int create_hdmi_dailinks(struct snd_soc_card *c= ard, codec_dai_name =3D "snd-soc-dummy-dai"; } =20 + if (!codec_dai_name) + return -ENOMEM; + ret =3D asoc_sdw_init_simple_dai_link(dev, *dai_links, be_id, name, 1, 0, // HDMI only supports playback cpu_dai_name, platform_component->name, @@ -1019,6 +1028,9 @@ static int create_bt_dailinks(struct snd_soc_card *ca= rd, SOF_BT_OFFLOAD_SSP_SHIFT; char *name =3D devm_kasprintf(dev, GFP_KERNEL, "SSP%d-BT", port); char *cpu_dai_name =3D devm_kasprintf(dev, GFP_KERNEL, "SSP%d Pin", port); + if (!name || !cpu_dai_name) + return -ENOMEM; + int ret; =20 ret =3D asoc_sdw_init_simple_dai_link(dev, *dai_links, be_id, name, --=20 2.31.1