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[ Upstream commitbfa335f18d] The adxl380_read_chn function returns either a negative value in case an error occurs or the actual sample. Check only for negative values after a channel is read. Fixes:df36de1367("iio: accel: add ADXL380 driver") Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com> Link: https://patch.msgid.link/20241101095202.20121-1-antoniu.miclaus@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Sasha Levin <sashal@kernel.org>