Staging: iio: adc: Fix sparse warning

Fix following sparse endianness problems:

  CHECK   drivers/staging/iio/adc/ad7816.c
drivers/staging/iio/adc/ad7816.c:91:17: warning: cast to restricted
__be16
drivers/staging/iio/adc/ad7816.c:91:17: warning: cast to restricted
__be16
drivers/staging/iio/adc/ad7816.c:91:17: warning: cast to restricted
__be16
drivers/staging/iio/adc/ad7816.c:91:17: warning: cast to restricted
__be16

Signed-off-by: Ksenija Stanojevic <ksenija.stanojevic@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/iio/adc/ad7816.c b/drivers/staging/iio/adc/ad7816.c
index b3dec7060d40676facb1c2bdcea47ecfacf788cd..ccec57c5f70d6235c2621610750c65e352def949 100644 (file)
--- a/drivers/staging/iio/adc/ad7816.c
+++ b/drivers/staging/iio/adc/ad7816.c
@@ -59,6 +59,7 @@ static int ad7816_spi_read(struct ad7816_chip_info *chip, u16 *data)
 {
        struct spi_device *spi_dev = chip->spi_dev;
        int ret = 0;
+       __be16 buf;
 
        gpio_set_value(chip->rdwr_pin, 1);
        gpio_set_value(chip->rdwr_pin, 0);
@@ -82,13 +83,13 @@ static int ad7816_spi_read(struct ad7816_chip_info *chip, u16 *data)
 
        gpio_set_value(chip->rdwr_pin, 0);
        gpio_set_value(chip->rdwr_pin, 1);
-       ret = spi_read(spi_dev, (u8 *)data, sizeof(*data));
+       ret = spi_read(spi_dev, &buf, sizeof(*data));
        if (ret < 0) {
                dev_err(&spi_dev->dev, "SPI data read error\n");
                return ret;
        }
 
-       *data = be16_to_cpu(*data);
+       *data = be16_to_cpu(buf);
 
        return ret;
 }