From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1794063040; b=0FLFHqsGR8MmdIZEKdV+i42aeRZiCyYp87e32HbockgtVRSuj5COAbgydrbOlBPdOGyZ 7flXor5OTK3Nq21rBNCa+onr2lpSkD6glUhJhfsU/rh/CPwuJfgcma/UCHdia2tSeBOv4 C8aJsSAruKtBvv/3y7J7dehz1p149KKD+B7HY48/v+THJFNYQ4+AA5xA21kzoWhVH31Ff CeGIdnLB9LLQxeR8d4ih8pFRio47LZrghm5KGOF3M0uieUdMqSexvWSnAix+V53peWrta bc+QTgOsXUKt9X2BWKm+z9BNtPNEQQ2bd1kvpW6vVrh7IqxFicXakNdq4rsx2B5zcUQ== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794063040; h=Received:DKIM-Signature:From:To:Cc:Subject:Date:Message-ID:X-Mailer: In-Reply-To:References:User-Agent:X-stable:X-Patchwork-Hint: MIME-Version:Content-Transfer-Encoding; bh=5Pe6GMoY10fjL1jC4cPBonNRoX8jQa+5VTFM5we1rOA=; b=gaF6LJzCNSF+7z+yPUwgWY56L12EA/KfJOtyrgH7Yp/6b4RajMoU4MMYtbSWsJ1yxFsc n6x3Db2CqnQPT9IALMb5o6Ppoh2BKgOnxFyZwmPmCIZOU/Ik81PWAQGv4CaNWK2W5BlG6 NLcz9bX+cEf5+uib08nLLZA1WlUKeXh8JHh7TSCn6d9X3wkUmTmqpqcFdgsMA1tTDM0ce Hb4gBC7iIyCrSFQAJf5/wXCdw+PGM7/E1luWKd/Ue0pFtdfqbQmZzYJjWTjqhZeq5ZoQa vxVvD3hHQUlaWgA5GAOP7mctje1KX49zYEBdV40flMwHp1NmWjleEBY6mCNsBOLagUQ== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=linuxfoundation.org header.i=@linuxfoundation.org header.a=rsa-sha256 header.s=korg header.b="p7ff8/7S"; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 22572606D81C; Sat, 7 Nov 2026 14:50:40 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.a=rsa-sha256 header.s=korg header.b=p7ff8/7S Received: by smtp.kernel.org (Postfix) with ESMTPSA id C164F1F008A2; Sat, 7 Nov 2026 14:50:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1794063040; bh=5Pe6GMoY10fjL1jC4cPBonNRoX8jQa+5VTFM5we1rOA=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=p7ff8/7SzknIJq8+cAZ5IOS/IGkmLi87gQDlG6x1EKNWTvzMyeJxt1N+TbTYD+FRl YmTgGogBiydBjJCgpa/PtjRKo6SG13Ajcgz1OC6AwBZegKVQgF0uYWLT5r1YEiUvzB Ehb4jNgJBfv3Wnwkc3wcg2bZm4mL/X7lYZ3FVzSw= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Jiale Yao , Jonathan Cameron , Sasha Levin Subject: [PATCH 6.18 270/869] iio: potentiometer: x9250: reject devices without match data Date: Sat, 7 Nov 2026 08:49:12 -0500 Message-ID: <20261107134900.843351312@linuxfoundation.org> X-Mailer: git-send-email 2.56.0 In-Reply-To: <20261107134852.069646174@linuxfoundation.org> References: <20261107134852.069646174@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore X-Mailing-List: stable@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.18-stable review patch. If anyone has any objections, please let me know. ------------------ From: Jiale Yao [ Upstream commit d13716e3defd5b8cec3ee2c27f4d9b7e01314067 ] A device bound through driver_override need not match an entry in the driver tables. In that case spi_get_device_match_data() returns NULL, but x9250_probe() later dereferences the result while naming the IIO device. Reject devices without match data before enabling the regulators. Fixes: 66bfc528a6fd ("iio: potentiometer: Add support for the Renesas X9250 potentiometers") Signed-off-by: Jiale Yao Cc: stable@vger.kernel.org Signed-off-by: Jonathan Cameron Signed-off-by: Sasha Levin --- drivers/iio/potentiometer/x9250.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/iio/potentiometer/x9250.c b/drivers/iio/potentiometer/x9250.c index 7353484926997..1c9e22459058b 100644 --- a/drivers/iio/potentiometer/x9250.c +++ b/drivers/iio/potentiometer/x9250.c @@ -155,10 +155,15 @@ static const char *const x9250_regulator_names[] = { static int x9250_probe(struct spi_device *spi) { + const struct x9250_cfg *cfg; struct iio_dev *indio_dev; struct x9250 *x9250; int ret; + cfg = spi_get_device_match_data(spi); + if (!cfg) + return -ENODATA; + ret = devm_regulator_bulk_get_enable(&spi->dev, ARRAY_SIZE(x9250_regulator_names), x9250_regulator_names); if (ret) @@ -176,7 +181,7 @@ static int x9250_probe(struct spi_device *spi) x9250 = iio_priv(indio_dev); x9250->spi = spi; - x9250->cfg = spi_get_device_match_data(spi); + x9250->cfg = cfg; x9250->wp_gpio = devm_gpiod_get_optional(&spi->dev, "wp", GPIOD_OUT_LOW); if (IS_ERR(x9250->wp_gpio)) return dev_err_probe(&spi->dev, PTR_ERR(x9250->wp_gpio), -- 2.53.0