From 341826a065660d1b77d89e6335b6095cd654271c Mon Sep 17 00:00:00 2001 From: Beniamin Bia Date: Mon, 4 Nov 2019 18:26:34 +0200 Subject: [PATCH] iio: adc: ad7606: fix reading unnecessary data from device MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit When a conversion result is being read from ADC, the driver reads the number of channels + 1 because it thinks that IIO_CHAN_SOFT_TIMESTAMP is also a physical channel. This patch fixes this issue. Fixes: 2985a5d88455 ("staging: iio: adc: ad7606: Move out of staging") Reported-by: Robert Wörle Signed-off-by: Beniamin Bia Cc: Signed-off-by: Jonathan Cameron --- drivers/iio/adc/ad7606.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/adc/ad7606.c b/drivers/iio/adc/ad7606.c index f5ba94c03a8d9..e4683a68522a4 100644 --- a/drivers/iio/adc/ad7606.c +++ b/drivers/iio/adc/ad7606.c @@ -85,7 +85,7 @@ err_unlock: static int ad7606_read_samples(struct ad7606_state *st) { - unsigned int num = st->chip_info->num_channels; + unsigned int num = st->chip_info->num_channels - 1; u16 *data = st->data; int ret; -- 2.30.2