github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-11-07 06:17:02 +01:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

iio: accel: adxl372: reject devices without match data

Browse Source 
SPI driver_override allows a device to bind to this driver without
matching either the OF or SPI device ID table. In that case,
spi_get_device_match_data() returns NULL.

adxl372_spi_probe() passes the result to adxl372_probe(), which
dereferences chip_info to set the IIO device name and capabilities,
causing a NULL pointer dereference.

Commit 572a008526 ("iio: dac: ad5686: missing NULL check on match
data") fixed the same driver_override issue in another SPI driver.
Reject devices without match data in the SPI frontend.

Fixes: 23d742859a ("iio: accel: adxl372: introduce chip_info structure")
Cc: stable@vger.kernel.org
Signed-off-by: Jiale Yao <yaojiale02@163.com>
Signed-off-by: Jonathan Cameron <jonathan.cameron@oss.qualcomm.com>
This commit is contained in:
Jiale Yao 2026-09-25 20:43:29 +08:00 committed by Jonathan Cameron
parent defd4c0b29
commit c72144098f
1 changed files with 2 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/iio/accel/adxl372_spi.c
View File

@ -25,6 +25,8 @@ static int adxl372_spi_probe(struct spi_device *spi)
struct regmap *regmap;
chip_info = spi_get_device_match_data(spi);
if (!chip_info)
return -ENODATA;
regmap = devm_regmap_init_spi(spi, &adxl372_spi_regmap_config);
if (IS_ERR(regmap))