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| author | Beniamin Bia <beniamin.bia@analog.com> | 2019-11-04 18:26:34 +0200 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2019-12-08 18:07:40 +0000 |
| commit | 341826a065660d1b77d89e6335b6095cd654271c (patch) | |
| tree | f494e21280beee5787763d0593b2bde169226f0a | |
| parent | 2611045e3555cd0d75837ae69ffd70ef51e28bf7 (diff) | |
| download | linux-341826a065660d1b77d89e6335b6095cd654271c.tar.gz linux-341826a065660d1b77d89e6335b6095cd654271c.tar.bz2 linux-341826a065660d1b77d89e6335b6095cd654271c.zip | |
iio: adc: ad7606: fix reading unnecessary data from device
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 <rwoerle@mibtec.de>
Signed-off-by: Beniamin Bia <beniamin.bia@analog.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
| -rw-r--r-- | drivers/iio/adc/ad7606.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iio/adc/ad7606.c b/drivers/iio/adc/ad7606.c index f5ba94c03a8d..e4683a68522a 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; |