linux-kernel - [PATCH AUTOSEL 6.2 06/17] iio: adc: palmas

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20230420110148.505779-6-sashal@kernel.org>
Date:   Thu, 20 Apr 2023 07:01:35 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Patrik Dahlström <risca@...akolonin.se>,
        Jonathan Cameron <Jonathan.Cameron@...wei.com>,
        Sasha Levin <sashal@...nel.org>, jic23@...nel.org,
        linux-iio@...r.kernel.org
Subject: [PATCH AUTOSEL 6.2 06/17] iio: adc: palmas_gpadc: fix NULL dereference on rmmod

From: Patrik Dahlström <risca@...akolonin.se>

[ Upstream commit 49f76c499d38bf67803438eee88c8300d0f6ce09 ]

Calling dev_to_iio_dev() on a platform device pointer is undefined and
will make adc NULL.

Signed-off-by: Patrik Dahlström <risca@...akolonin.se>
Link: https://lore.kernel.org/r/20230313205029.1881745-1-risca@dalakolonin.se
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@...wei.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/iio/adc/palmas_gpadc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/adc/palmas_gpadc.c b/drivers/iio/adc/palmas_gpadc.c
index fd000345ec5cf..849a697a467e5 100644
--- a/drivers/iio/adc/palmas_gpadc.c
+++ b/drivers/iio/adc/palmas_gpadc.c
@@ -639,7 +639,7 @@ static int palmas_gpadc_probe(struct platform_device *pdev)
 
 static int palmas_gpadc_remove(struct platform_device *pdev)
 {
-	struct iio_dev *indio_dev = dev_to_iio_dev(&pdev->dev);
+	struct iio_dev *indio_dev = dev_get_drvdata(&pdev->dev);
 	struct palmas_gpadc *adc = iio_priv(indio_dev);
 
 	if (adc->wakeup1_enable || adc->wakeup2_enable)
-- 
2.39.2