status is a u8 hence the check if status is less than zero has no effect.
Fix this by replacing status with int ret so the less than zero compare
will correctly detect errors.
Issue found with static analysis with CoverityScan, CID 1375919
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Fixes:
974e6f02e27e ("iio: cros_ec_sensors_core: Add common functions for the ChromeOS EC Sensor Hub")
Reviewed-by: Guenter Roeck <groeck@chromium.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
return -EIO;
/* Read status byte until EC is not busy. */
- status = cros_ec_sensors_read_until_not_busy(st);
- if (status < 0)
- return status;
+ ret = cros_ec_sensors_read_until_not_busy(st);
+ if (ret < 0)
+ return ret;
/*
* Store the current sample id so that we can compare to the
* sample id after reading the data.
*/
- samp_id = status & EC_MEMMAP_ACC_STATUS_SAMPLE_ID_MASK;
+ samp_id = ret & EC_MEMMAP_ACC_STATUS_SAMPLE_ID_MASK;
/* Read all EC data, format it, and store it into data. */
ret = cros_ec_sensors_read_data_unsafe(indio_dev, scan_mask,