Commit 307fe9dd authored by Linus Walleij's avatar Linus Walleij Committed by Jonathan Cameron

iio: accel: kxsd9: Fix scaling bug

All the scaling of the KXSD9 involves multiplication with a
fraction number < 1.

However the scaling value returned from IIO_INFO_SCALE was
unpredictable as only the micros of the value was assigned, and
not the integer part, resulting in scaling like this:

$cat in_accel_scale
-1057462640.011978

Fix this by assigning zero to the integer part.

Cc: stable@vger.kernel.org
Tested-by: default avatarJonathan Cameron <jic23@kernel.org>
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: default avatarJonathan Cameron <jic23@kernel.org>
parent 1c500840
...@@ -166,6 +166,7 @@ static int kxsd9_read_raw(struct iio_dev *indio_dev, ...@@ -166,6 +166,7 @@ static int kxsd9_read_raw(struct iio_dev *indio_dev,
ret = spi_w8r8(st->us, KXSD9_READ(KXSD9_REG_CTRL_C)); ret = spi_w8r8(st->us, KXSD9_READ(KXSD9_REG_CTRL_C));
if (ret < 0) if (ret < 0)
goto error_ret; goto error_ret;
*val = 0;
*val2 = kxsd9_micro_scales[ret & KXSD9_FS_MASK]; *val2 = kxsd9_micro_scales[ret & KXSD9_FS_MASK];
ret = IIO_VAL_INT_PLUS_MICRO; ret = IIO_VAL_INT_PLUS_MICRO;
break; break;
......
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