linux-kernel - [PATCH][next] iio: adc: ad7476: remove redundant null check on an array

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Date:   Fri, 24 Apr 2020 14:04:19 +0100
From:   Colin King <colin.king@...onical.com>
To:     Dragos Bogdan <dragos.bogdan@...log.com>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Michael Hennerich <Michael.Hennerich@...log.com>,
        Jonathan Cameron <jic23@...nel.org>,
        Hartmut Knaack <knaack.h@....de>,
        Peter Meerwald-Stadler <pmeerw@...erw.net>,
        linux-iio@...r.kernel.org
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH][next] iio: adc: ad7476: remove redundant null check on an array

From: Colin Ian King <colin.king@...onical.com>

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.

Addresses-Coverity: ("Array compared against 0")
Signed-off-by: Colin Ian King <colin.king@...onical.com>
---
 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 */
 
-- 
2.25.1