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iio: consumers: Fix offset handling in iio_convert_raw_to_processed()

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[ Upstream commit 33f5c69c4daff39c010b3ea6da8ebab285f4277b ]

Fix iio_convert_raw_to_processed() offset handling for channels without
a scale attribute.

The offset has been applied to the raw64 value not to the original raw
value. Use the raw64 value so that the offset is taken into account.

Fixes: 14b457fdde ("iio: inkern: apply consumer scale when no channel scale is available")
Cc: Liam Beguin <liambeguin@gmail.com>
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Signed-off-by: Hans de Goede <hansg@kernel.org>
Link: https://patch.msgid.link/20250831104825.15097-3-hansg@kernel.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Hans de Goede 2025-08-31 12:48:21 +02:00 committed by Greg Kroah-Hartman
parent 3ac37e1003
commit 8bcc2be422
1 changed files with 1 additions and 1 deletions
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2
drivers/iio/inkern.c
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@ -669,7 +669,7 @@ static int iio_convert_raw_to_processed_unlocked(struct iio_channel *chan,
* If no channel scaling is available apply consumer scale to
* raw value and return.
*/
*processed = raw * scale;
*processed = raw64 * scale;
return 0;
}