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iio: adc: palmas_gpadc: fix NULL dereference on rmmod 

[ Upstream commit 49f76c499d ]

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>
This commit is contained in:
Patrik Dahlström 2023-03-13 21:50:29 +01:00 committed by Greg Kroah-Hartman
parent c81f5c8b8c
commit 372bec6747
1 changed files with 1 additions and 1 deletions
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2
drivers/iio/adc/palmas_gpadc.c
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@ -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)