From f20dbe11e2e904547597ae7371c1f635e3be9cad Mon Sep 17 00:00:00 2001 From: Lorenzo Bianconi Date: Fri, 7 Feb 2020 13:37:54 +0100 Subject: iio: imu: st_lsm6dsx: check return value from st_lsm6dsx_sensor_set_enable Add missing return value check in st_lsm6dsx_shub_read_oneshot disabling the slave device connected to the st_lsm6dsx i2c controller. The issue is reported by coverity with the following error: Unchecked return value: If the function returns an error value, the error value may be mistaken for a normal value. Addresses-Coverity-ID: 1456767 ("Unchecked return value") Signed-off-by: Lorenzo Bianconi Signed-off-by: Jonathan Cameron --- drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_shub.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'drivers/iio/imu') diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_shub.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_shub.c index eea555617d4a..95ddd19d1aa7 100644 --- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_shub.c +++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_shub.c @@ -464,9 +464,10 @@ st_lsm6dsx_shub_read_oneshot(struct st_lsm6dsx_sensor *sensor, len = min_t(int, sizeof(data), ch->scan_type.realbits >> 3); err = st_lsm6dsx_shub_read(sensor, ch->address, data, len); + if (err < 0) + return err; - st_lsm6dsx_shub_set_enable(sensor, false); - + err = st_lsm6dsx_shub_set_enable(sensor, false); if (err < 0) return err; -- cgit v1.2.3