Re: [PATCH][next] iio: adc: ad7476: remove redundant null check on an array
From: Ardelean, Alexandru
Date: Fri Apr 24 2020 - 11:02:15 EST
On Fri, 2020-04-24 at 14:04 +0100, Colin King wrote:
> From: Colin Ian King <colin.king@xxxxxxxxxxxxx>
>
> The null check on st->chip_info->convst_channel is redundant because
> convst_channel is a 2 element array of struct iio_chan_spec objects
> and this can never be null. Fix this by removing the null check.
>
Reviewed-by: Alexandru Ardelean <alexandru.ardelean@xxxxxxxxxx>
> Addresses-Coverity: ("Array compared against 0")
> Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
> ---
> drivers/iio/adc/ad7476.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/iio/adc/ad7476.c b/drivers/iio/adc/ad7476.c
> index e9984a38fc4c..4e816d714ad2 100644
> --- a/drivers/iio/adc/ad7476.c
> +++ b/drivers/iio/adc/ad7476.c
> @@ -309,7 +309,7 @@ static int ad7476_probe(struct spi_device *spi)
> indio_dev->num_channels = 2;
> indio_dev->info = &ad7476_info;
>
> - if (st->convst_gpio && st->chip_info->convst_channel)
> + if (st->convst_gpio)
> indio_dev->channels = st->chip_info->convst_channel;
> /* Setup default message */
>