From patchwork Tue Dec 19 16:22:31 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stefan Binding X-Patchwork-Id: 13498478 Received: from mx0b-001ae601.pphosted.com (mx0a-001ae601.pphosted.com [67.231.149.25]) (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 79A8520315; Tue, 19 Dec 2023 16:23:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=opensource.cirrus.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=opensource.cirrus.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=cirrus.com header.i=@cirrus.com header.b="IIT2R+8t" Received: from pps.filterd (m0077473.ppops.net [127.0.0.1]) by mx0a-001ae601.pphosted.com (8.17.1.24/8.17.1.24) with ESMTP id 3BJ6vo3A022423; Tue, 19 Dec 2023 10:22:47 -0600 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cirrus.com; h= from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding:content-type; s= PODMain02222019; bh=kWx+FOgFshuXbEEqkcUUBv5Kl1kbOKWb4xX0B875/08=; b= IIT2R+8t3bT7OdewwNHScukbYxtUDo26JLmOO9T/Ab9SLxPlqSu+WSErFFSyKPen VJ6YdtDeQGYge5BoBoZQx1+8V54g7FQxmIwG/iXkCOChn0zKyg9VvQVE4au6TDcX jSO3e/qfvIxEjn1T3cM8d9a+qQ1b/KwZPAyS34nXbINCO+HkdslSPtfVcnOFwNv6 wZTGJdOWQKVQk8z5MjKABkiQvUQvsijpooYlTNbZ2wV3h5k7xroFEPct21vUeLAV of0afIOtumAtJBHJwcYL7l1Ls8/fAXHywuGP2rF0L8ao0k/XGsi7UJimzxX98x1h /dAjOZdDQJRY+Zpnti1xlA== Received: from ediex01.ad.cirrus.com ([84.19.233.68]) by mx0a-001ae601.pphosted.com (PPS) with ESMTPS id 3v1a6249gs-2 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 19 Dec 2023 10:22:47 -0600 (CST) Received: from ediex01.ad.cirrus.com (198.61.84.80) by ediex01.ad.cirrus.com (198.61.84.80) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.40; Tue, 19 Dec 2023 16:22:43 +0000 Received: from ediswmail.ad.cirrus.com (198.61.86.93) by ediex01.ad.cirrus.com (198.61.84.80) with Microsoft SMTP Server id 15.2.1118.40 via Frontend Transport; Tue, 19 Dec 2023 16:22:43 +0000 Received: from sbinding-cirrus-dsktp2.ad.cirrus.com (unknown [198.90.238.77]) by ediswmail.ad.cirrus.com (Postfix) with ESMTP id 0A9A715B9; Tue, 19 Dec 2023 16:22:43 +0000 (UTC) From: Stefan Binding To: Jaroslav Kysela , Takashi Iwai CC: , , , , "Stefan Binding" Subject: [PATCH v1 1/2] ALSA: hda: cs35l41: Do not allow uninitialised variables to be freed Date: Tue, 19 Dec 2023 16:22:31 +0000 Message-ID: <20231219162232.790358-2-sbinding@opensource.cirrus.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20231219162232.790358-1-sbinding@opensource.cirrus.com> References: <20231219162232.790358-1-sbinding@opensource.cirrus.com> Precedence: bulk X-Mailing-List: linux-sound@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Proofpoint-GUID: ODee1_Mhp9AwakRjhVnYukfjuVkbAeWJ X-Proofpoint-ORIG-GUID: ODee1_Mhp9AwakRjhVnYukfjuVkbAeWJ X-Proofpoint-Spam-Reason: safe Initialise the variables to NULL so that they cannot be uninitialised when devm_kfree is called. Found by static analysis. Fixes: 8c4c216db8fb ("ALSA: hda: cs35l41: Add config table to support many laptops without _DSD") Signed-off-by: Stefan Binding --- sound/pci/hda/cs35l41_hda_property.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/sound/pci/hda/cs35l41_hda_property.c b/sound/pci/hda/cs35l41_hda_property.c index c9eb70290973..73b304e6c83c 100644 --- a/sound/pci/hda/cs35l41_hda_property.c +++ b/sound/pci/hda/cs35l41_hda_property.c @@ -77,10 +77,10 @@ static const struct cs35l41_config cs35l41_config_table[] = { static int cs35l41_add_gpios(struct cs35l41_hda *cs35l41, struct device *physdev, int reset_gpio, int spkid_gpio, int cs_gpio_index, int num_amps) { - struct acpi_gpio_mapping *gpio_mapping; - struct acpi_gpio_params *reset_gpio_params; - struct acpi_gpio_params *spkid_gpio_params; - struct acpi_gpio_params *cs_gpio_params; + struct acpi_gpio_mapping *gpio_mapping = NULL; + struct acpi_gpio_params *reset_gpio_params = NULL; + struct acpi_gpio_params *spkid_gpio_params = NULL; + struct acpi_gpio_params *cs_gpio_params = NULL; unsigned int num_entries = 0; unsigned int reset_index, spkid_index, csgpio_index; int i;