staging: iio: ad7816: drop unnecessary initialization of variables

Initialization is unnecessary when the variable is written before it is
read. There were some occasions in which the driver would initialize `ret'
during declaration without need.

Signed-off-by: Hardik Singh Rathore <hardiksingh.k@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

diff --git a/drivers/staging/iio/adc/ad7816.c b/drivers/staging/iio/adc/ad7816.c
index 5209651..ee50e72 100644 (file)
--- a/drivers/staging/iio/adc/ad7816.c
+++ b/drivers/staging/iio/adc/ad7816.c
@@ -65,7 +65,7 @@ enum ad7816_type {
 static int ad7816_spi_read(struct ad7816_chip_info *chip, u16 *data)
 {
        struct spi_device *spi_dev = chip->spi_dev;
-       int ret = 0;
+       int ret;
        __be16 buf;
 
        gpiod_set_value(chip->rdwr_pin, 1);
@@ -106,7 +106,7 @@ static int ad7816_spi_read(struct ad7816_chip_info *chip, u16 *data)
 static int ad7816_spi_write(struct ad7816_chip_info *chip, u8 data)
 {
        struct spi_device *spi_dev = chip->spi_dev;
-       int ret = 0;
+       int ret;
 
        gpiod_set_value(chip->rdwr_pin, 1);
        gpiod_set_value(chip->rdwr_pin, 0);
@@ -354,8 +354,7 @@ static int ad7816_probe(struct spi_device *spi_dev)
 {
        struct ad7816_chip_info *chip;
        struct iio_dev *indio_dev;
-       int ret = 0;
-       int i;
+       int i, ret;
 
        indio_dev = devm_iio_device_alloc(&spi_dev->dev, sizeof(*chip));
        if (!indio_dev)