Use augmented assignment to subtract the offset for negative temperature values. Specify the amount of private data to be allocated through devm_iio_device_alloc() with sizeof(*priv), as it is shorter and common practice in IIO. Signed-off-by: Hartmut Knaack <knaack.h@xxxxxx> --- drivers/iio/adc/berlin2-adc.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/iio/adc/berlin2-adc.c b/drivers/iio/adc/berlin2-adc.c index b7df94a0b879..1d14290ba6f2 100644 --- a/drivers/iio/adc/berlin2-adc.c +++ b/drivers/iio/adc/berlin2-adc.c @@ -221,7 +221,7 @@ static int berlin2_adc_read_raw(struct iio_dev *indio_dev, return temp; if (temp > 2047) - temp = -(4096 - temp); + temp -= 4096; /* Convert to milli Celsius */ *val = ((temp * 100000) / 264 - 270000); @@ -286,8 +286,7 @@ static int berlin2_adc_probe(struct platform_device *pdev) int irq, tsen_irq; int ret; - indio_dev = devm_iio_device_alloc(&pdev->dev, - sizeof(struct berlin2_adc_priv)); + indio_dev = devm_iio_device_alloc(&pdev->dev, sizeof(*priv)); if (!indio_dev) return -ENOMEM; -- 2.4.3 -- To unsubscribe from this list: send the line "unsubscribe linux-iio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
