iio: adc: stm32: fix bad error check on max_channels
authorFabrice Gasnier <fabrice.gasnier@st.com>
Mon, 18 Sep 2017 16:24:15 +0000 (18:24 +0200)
committerJonathan Cameron <Jonathan.Cameron@huawei.com>
Sun, 24 Sep 2017 13:07:28 +0000 (14:07 +0100)
commit4fb840c95f82652cece7352be9080884cafb92a0
tree30bf40cf9ff3014834d3e2d85c7f52a7be7dcd96
parentb7a9776c1f9443326632486fcbd82dca82f8511e
iio: adc: stm32: fix bad error check on max_channels

Fix a bad error check when counting 'st,adc-channels' array elements.
This is seen when all channels are in use simultaneously.

Fixes: 64ad7f643 ("iio: adc: stm32: introduce compatible data cfg")
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
drivers/iio/adc/stm32-adc.c