From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from m16.mail.163.com (m16.mail.163.com [117.135.210.3]) (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 4978449E5C3; Fri, 25 Sep 2026 12:58:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=117.135.210.3 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790341142; cv=none; b=dTxOYmi/hFo/YAttQKRQbv0HXBsX8MfzIrK85tGbHQaK3BJyUDfi7NlnmUJXatL/4uYkS8JKlfmQ30nM1gcIs6YqQTbvylKKEGcAzNRPPwS97/rM1P8QdLvcyyfcXxtOFd6pDlPX+C23D+3M8mHeyICrcaVxGXM8AcTqZV0Ay1I= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790341142; c=relaxed/simple; bh=uLpXrdIWIYKze0BCF9SAOKWoGx8qGzV5fV6XnJyN1wo=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=chfXCtsmHx0NVzNkD7u8NgaCg/lc8PhnxlWgG8cudoIdS5DPzH+z/oSZfwTPtcAJzHdlKPnShzBe7q+SXXcYicyB4ObelzxH/6JCW1JF+T4D8NH6jXwgcq8l1ALgMAbvK0iuRreZxRsmEeonQEGRwHTIXDyX5IrE4GBtY3xTMfM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com; spf=pass smtp.mailfrom=163.com; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b=cmpCH+US; arc=none smtp.client-ip=117.135.210.3 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=163.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b="cmpCH+US" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com; s=s110527; h=From:To:Subject:Date:Message-Id:MIME-Version; bh=B7 bLhgAT/Xf+twxn2tzH5WND84rczf5HIYQ0f/XoAI4=; b=cmpCH+USuYQX0vyA5s DxjeuS//UFG9GhTZZCCZhZJXEeI5OiXFsfC/8feOpTVSwaLx1dK8Ete93FEdpZ7Q foiJ+y3MeMLpnoRb1NoTMGgF2FZYBEemSE9YjjhnCky/mFHYCwhDEUaPBsboK+yY IBBngzp4eaUFCr3cFyBnctGHo= Received: from pc.localdomain (unknown []) by gzga-smtp-mtada-g1-0 (Coremail) with SMTP id _____wD3f3zUb7ZqOLTlAg--.28269S10; Fri, 25 Sep 2026 20:58:11 +0800 (CST) From: Jiale Yao To: Jonathan Cameron , David Lechner , =?UTF-8?q?Nuno=20S=C3=A1?= , Andy Shevchenko , =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig=20=28The=20Capable=20Hub=29?= , David Jander , Takashi Sakamoto , Bjorn Helgaas , Oleksij Rempel , linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Jiale Yao , stable@vger.kernel.org Subject: [PATCH 8/9] iio: adc: ti-ads131m02: reject devices without match data Date: Fri, 25 Sep 2026 20:57:46 +0800 Message-Id: <20260925125754.2162337-9-yaojiale02@163.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20260925125754.2162337-1-yaojiale02@163.com> References: <20260925125754.2162337-1-yaojiale02@163.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CM-TRANSID:_____wD3f3zUb7ZqOLTlAg--.28269S10 X-Coremail-Antispam: 1Uf129KBjvJXoW7XF1rWFWfGF4rtw15WrWfXwb_yoW8Jr48pF Z09FyYkryUCF42kr4kW3429a45X3Z8Ka1YgF48J3ZY9r45CryqvryUt3Wxt34rJFZYg3Zr try7KF109FW8AFJanT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDUYxBIdaVFxhVjvjDU0xZFpf9x0pEb4SfUUUUU= X-CM-SenderInfo: x1dryxhdohiji6rwjhhfrp/xtbCzQNclmq2b+ObxAAA3L SPI driver_override allows a device to bind to this driver without matching either the OF or SPI device ID table. In that case, spi_get_device_match_data() returns NULL. ads131m_probe() immediately dereferences the returned configuration to initialize the IIO device, causing a NULL pointer dereference. Commit 572a00852635 ("iio: dac: ad5686: missing NULL check on match data") fixed the same driver_override issue in another SPI driver. Reject devices without match data before using the configuration. Fixes: 4aa91223fd6c ("iio: adc: Add TI ADS131M0x ADC driver") Cc: stable@vger.kernel.org Signed-off-by: Jiale Yao --- drivers/iio/adc/ti-ads131m02.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/iio/adc/ti-ads131m02.c b/drivers/iio/adc/ti-ads131m02.c index 2f8f75c8216b..7ecfb27fd7ef 100644 --- a/drivers/iio/adc/ti-ads131m02.c +++ b/drivers/iio/adc/ti-ads131m02.c @@ -897,6 +897,8 @@ static int ads131m_probe(struct spi_device *spi) indio_dev->info = &ads131m_info; config = spi_get_device_match_data(spi); + if (!config) + return -ENODATA; priv->config = config; indio_dev->name = config->name; -- 2.34.1