This is a note to let you know that I've just added the patch titled
iio: gyro: adxrs290: fix data signedness
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
iio-gyro-adxrs290-fix-data-signedness.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From fde272e78e004a45c7e4976876277d7e6a5a0ede Mon Sep 17 00:00:00 2001
From: Kister Genesis Jimenez <kister.jimenez@xxxxxxxxxx>
Date: Mon, 15 Nov 2021 11:41:47 +0100
Subject: iio: gyro: adxrs290: fix data signedness
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From: Kister Genesis Jimenez <kister.jimenez@xxxxxxxxxx>
commit fde272e78e004a45c7e4976876277d7e6a5a0ede upstream.
Properly sign-extend the rate and temperature data.
Fixes: 2c8920fff1457 ("iio: gyro: Add driver support for ADXRS290")
Signed-off-by: Kister Genesis Jimenez <kister.jimenez@xxxxxxxxxx>
Signed-off-by: Nuno Sá <nuno.sa@xxxxxxxxxx>
Reviewed-by: Andy Shevchenko <andy.shevchenko@xxxxxxxxx>
Link: https://lore.kernel.org/r/20211115104147.18669-1-nuno.sa@xxxxxxxxxx
Cc: <Stable@xxxxxxxxxxxxxxx>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/iio/gyro/adxrs290.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
--- a/drivers/iio/gyro/adxrs290.c
+++ b/drivers/iio/gyro/adxrs290.c
@@ -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
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
}
/* extract lower 12 bits temperature reading */
- *val = temp & 0x0FFF;
+ *val = sign_extend32(temp, 11);
err_unlock:
mutex_unlock(&st->lock);
Patches currently in stable-queue which might be from kister.jimenez@xxxxxxxxxx are
queue-5.15/iio-gyro-adxrs290-fix-data-signedness.patch
