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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> MIME-Version: 1.0 X-Proofpoint-GUID: ODee1_Mhp9AwakRjhVnYukfjuVkbAeWJ X-Proofpoint-ORIG-GUID: ODee1_Mhp9AwakRjhVnYukfjuVkbAeWJ X-Proofpoint-Spam-Reason: safe Message-ID-Hash: JZ2EJSO5KCVT2YYIPTA476DPE6THA7R2 X-Message-ID-Hash: JZ2EJSO5KCVT2YYIPTA476DPE6THA7R2 X-MailFrom: prvs=7717b54677=sbinding@opensource.cirrus.com X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-alsa-devel.alsa-project.org-0; header-match-alsa-devel.alsa-project.org-1; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header X-Mailman-Version: 3.3.9 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: 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;