diff options
| author | Fabrizio Lamarque <fl.scratchpad@gmail.com> | 2023-05-30 10:53:07 +0300 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2023-06-04 14:31:59 +0300 |
| commit | 9e58e3a6f8e1c483c86a04903b7b7aa0923e4426 (patch) | |
| tree | 964198c3909b42f9b00c781706b20d49f9843386 | |
| parent | a4cba07e64e6ec22d9504a1a45d29afa863dc19c (diff) | |
| download | linux-9e58e3a6f8e1c483c86a04903b7b7aa0923e4426.tar.xz | |
iio: adc: ad7192: Fix null ad7192_state pointer access
Pointer to indio_dev structure is obtained via spi_get_drvdata() at
the beginning of function ad7192_setup(), but the spi->dev->driver_data
member is not initialized, hence a NULL pointer is returned.
Fix by changing ad7192_setup() signature to take pointer to struct
iio_dev, and get ad7192_state pointer via st = iio_priv(indio_dev);
Fixes: bd5dcdeb3fd0 ("iio: adc: ad7192: convert to device-managed functions")
Signed-off-by: Fabrizio Lamarque <fl.scratchpad@gmail.com>
Reviewed-by: Nuno Sa <nuno.sa@analog.com>
Cc: <Stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20230530075311.400686-2-fl.scratchpad@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
| -rw-r--r-- | drivers/iio/adc/ad7192.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/iio/adc/ad7192.c b/drivers/iio/adc/ad7192.c index 99bb604b78c8..55a26dbd6108 100644 --- a/drivers/iio/adc/ad7192.c +++ b/drivers/iio/adc/ad7192.c @@ -380,9 +380,9 @@ static int ad7192_of_clock_select(struct ad7192_state *st) return clock_sel; } -static int ad7192_setup(struct ad7192_state *st, struct device_node *np) +static int ad7192_setup(struct iio_dev *indio_dev, struct device_node *np) { - struct iio_dev *indio_dev = spi_get_drvdata(st->sd.spi); + struct ad7192_state *st = iio_priv(indio_dev); bool rej60_en, refin2_en; bool buf_en, bipolar, burnout_curr_en; unsigned long long scale_uv; @@ -1069,7 +1069,7 @@ static int ad7192_probe(struct spi_device *spi) } } - ret = ad7192_setup(st, spi->dev.of_node); + ret = ad7192_setup(indio_dev, spi->dev.of_node); if (ret) return ret; |