[PATCH AUTOSEL 6.1 06/15] iio: adc: palmas_gpadc: fix NULL dereference on rmmod

Sasha Levin
2023-04-20T11:06:33Z

From: Patrik Dahlström <risca@dalakolonin.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@dalakolonin.se>
Link: https://lore.kernel.org/r/20230313205029.1881745-1-risca@dalakolonin.se
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Sasha Levin <sashal@kernel.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