From: Lucas Stankus lucas.p.stankus@gmail.com
commit 04f5b9f539ce314f758d919a14dc7a669f3b7838 upstream.
AD7745 devices don't have the CIN2 pins and therefore can't handle related channels. Forcing the number of AD7746 channels may lead to enabling more channels than what the hardware actually supports. Avoid num_channels being overwritten after first assignment.
Signed-off-by: Lucas Stankus lucas.p.stankus@gmail.com Fixes: 83e416f458d53 ("staging: iio: adc: Replace, rewrite ad7745 from scratch.") Signed-off-by: Jonathan Cameron Jonathan.Cameron@huawei.com Cc: Stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- drivers/staging/iio/cdc/ad7746.c | 1 - 1 file changed, 1 deletion(-)
diff --git a/drivers/staging/iio/cdc/ad7746.c b/drivers/staging/iio/cdc/ad7746.c index f53612a6461d6..18a73ee48e7c6 100644 --- a/drivers/staging/iio/cdc/ad7746.c +++ b/drivers/staging/iio/cdc/ad7746.c @@ -703,7 +703,6 @@ static int ad7746_probe(struct i2c_client *client, indio_dev->num_channels = ARRAY_SIZE(ad7746_channels); else indio_dev->num_channels = ARRAY_SIZE(ad7746_channels) - 2; - indio_dev->num_channels = ARRAY_SIZE(ad7746_channels); indio_dev->modes = INDIO_DIRECT_MODE;
if (pdata) {