staging: iio: tsl2x7x: add missing error checks

The functions in_illuminance0_calibrate_store() and
in_illuminance0_lux_table_store() did not have complete error handling
in place. This patch adds the missing error handling.

Signed-off-by: Brian Masney <masneyb@onstation.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

diff --git a/drivers/staging/iio/light/tsl2x7x.c b/drivers/staging/iio/light/tsl2x7x.c
index 8adc6db..da7a4e0 100644 (file)
--- a/drivers/staging/iio/light/tsl2x7x.c
+++ b/drivers/staging/iio/light/tsl2x7x.c
@@ -940,8 +940,11 @@ static ssize_t in_illuminance0_calibrate_store(struct device *dev,
        if (strtobool(buf, &value))
                return -EINVAL;
 
-       if (value)
-               tsl2x7x_als_calibrate(indio_dev);
+       if (value) {
+               ret = tsl2x7x_als_calibrate(indio_dev);
+               if (ret < 0)
+                       return ret;
+       }
 
        ret = tsl2x7x_invoke_change(indio_dev);
        if (ret < 0)
@@ -1006,8 +1009,11 @@ static ssize_t in_illuminance0_lux_table_store(struct device *dev,
                return -EINVAL;
        }
 
-       if (chip->tsl2x7x_chip_status == TSL2X7X_CHIP_WORKING)
-               tsl2x7x_chip_off(indio_dev);
+       if (chip->tsl2x7x_chip_status == TSL2X7X_CHIP_WORKING) {
+               ret = tsl2x7x_chip_off(indio_dev);
+               if (ret < 0)
+                       return ret;
+       }
 
        /* Zero out the table */
        memset(chip->tsl2x7x_device_lux, 0, sizeof(chip->tsl2x7x_device_lux));