From c816d9e7a57bd436b2cff8f48b0e8cff128f05db Mon Sep 17 00:00:00 2001 From: Matt Ranostay Date: Wed, 2 Mar 2016 19:18:12 -0800 Subject: [PATCH] iio: imu: mpu6050: fix possible NULL dereferences Fix possible null dereferencing of i2c and spi driver data. Signed-off-by: Matt Ranostay Signed-off-by: Jonathan Cameron --- drivers/iio/imu/inv_mpu6050/inv_mpu_i2c.c | 3 ++- drivers/iio/imu/inv_mpu6050/inv_mpu_spi.c | 3 ++- 2 files changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_i2c.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_i2c.c index f581256..d0c0e20 100644 --- a/drivers/iio/imu/inv_mpu6050/inv_mpu_i2c.c +++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_i2c.c @@ -117,6 +117,7 @@ static int inv_mpu_probe(struct i2c_client *client, struct inv_mpu6050_state *st; int result; const char *name = id ? id->name : NULL; + const int chip_type = id ? id->driver_data : 0; struct regmap *regmap; if (!i2c_check_functionality(client->adapter, @@ -131,7 +132,7 @@ static int inv_mpu_probe(struct i2c_client *client, } result = inv_mpu_core_probe(regmap, client->irq, name, - NULL, id->driver_data); + NULL, chip_type); if (result < 0) return result; diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_spi.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_spi.c index dea6c43..7bcb8d8 100644 --- a/drivers/iio/imu/inv_mpu6050/inv_mpu_spi.c +++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_spi.c @@ -46,6 +46,7 @@ static int inv_mpu_probe(struct spi_device *spi) struct regmap *regmap; const struct spi_device_id *id = spi_get_device_id(spi); const char *name = id ? id->name : NULL; + const int chip_type = id ? id->driver_data : 0; regmap = devm_regmap_init_spi(spi, &inv_mpu_regmap_config); if (IS_ERR(regmap)) { @@ -55,7 +56,7 @@ static int inv_mpu_probe(struct spi_device *spi) } return inv_mpu_core_probe(regmap, spi->irq, name, - inv_mpu_i2c_disable, id->driver_data); + inv_mpu_i2c_disable, chip_type); } static int inv_mpu_remove(struct spi_device *spi) -- 2.7.4