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iio: gyro: adxrs290: fix data signedness

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commit fde272e78e upstream.

Properly sign-extend the rate and temperature data.

Fixes: 2c8920fff1 ("iio: gyro: Add driver support for ADXRS290")
Signed-off-by: Kister Genesis Jimenez <kister.jimenez@analog.com>
Signed-off-by: Nuno Sá <nuno.sa@analog.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20211115104147.18669-1-nuno.sa@analog.com
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Kister Genesis Jimenez 2021-11-15 11:41:47 +01:00 committed by Greg Kroah-Hartman
parent 02d5a2a48b
commit 7d2a35d997
1 changed files with 3 additions and 2 deletions
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5
drivers/iio/gyro/adxrs290.c
View file

@ -7,6 +7,7 @@
*/
#include <linux/bitfield.h>
#include <linux/bitops.h>
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/kernel.h>
@ -124,7 +125,7 @@ static int adxrs290_get_rate_data(struct iio_dev *indio_dev, const u8 cmd, int *
goto err_unlock;
}
*val = temp;
*val = sign_extend32(temp, 15);
err_unlock:
mutex_unlock(&st->lock);
@ -146,7 +147,7 @@ static int adxrs290_get_temp_data(struct iio_dev *indio_dev, int *val)
}
/* extract lower 12 bits temperature reading */
*val = temp & 0x0FFF;
*val = sign_extend32(temp, 11);
err_unlock:
mutex_unlock(&st->lock);