[Letux-kernel] [PATCH v4 1/9] iio: adc: palmas_gpadc: fix NULL dereference on rmmod
Patrik Dahlström
risca at dalakolonin.se
Sat Apr 8 13:48:17 CEST 2023
Calling dev_to_iio_dev() on a platform device pointer is undefined and
will make adc NULL.
Signed-off-by: Patrik Dahlström <risca at dalakolonin.se>
Link: https://lore.kernel.org/r/20230313205029.1881745-1-risca@dalakolonin.se
Signed-off-by: Jonathan Cameron <Jonathan.Cameron at huawei.com>
---
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 fd000345ec5c..849a697a467e 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)
--
2.25.1
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