The parameter 'dev' of st_lsm6dsx_probe() isn't been checked before used, including when st_lsm6dsx_probe() is called. Therefore, it might be better to check, just in case. Fixes: 290a6ce ("iio: imu: add support to lsm6dsx driver") Signed-off-by: Jiasheng Jiang <jiasheng@xxxxxxxxxxx> --- drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c index 7cedaab..7b4754d 100644 --- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c +++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c @@ -2199,6 +2199,8 @@ int st_lsm6dsx_probe(struct device *dev, int irq, int hw_id, const char *name = NULL; int i, err; + if (!dev) + return -ENOMEM; hw = devm_kzalloc(dev, sizeof(*hw), GFP_KERNEL); if (!hw) return -ENOMEM; -- 2.7.4