linux-kernel - [PATCH] adc: correctly check return value

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Message-Id: <1445270931-24109-1-git-send-email-wuninsu@gmail.com>
Date:	Mon, 19 Oct 2015 16:08:51 +0000
From:	Insu Yun <wuninsu@...il.com>
To:	lars@...afoo.de, Michael.Hennerich@...log.com, jic23@...nel.org,
	knaack.h@....de, pmeerw@...erw.net, linux-iio@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc:	taesoo@...ech.edu, yeongjin.jang@...ech.edu, insu@...ech.edu,
	changwoo@...ech.edu, Insu Yun <wuninsu@...il.com>
Subject: [PATCH] adc: correctly check return value

Since devm_regulator_get returns address or error, not NULL,
it needs to be checked with IS_ERR, not IS_ERR_OR_NULL.

Signed-off-by: Insu Yun <wuninsu@...il.com>
---
 drivers/iio/adc/ad7266.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/adc/ad7266.c b/drivers/iio/adc/ad7266.c
index 70f78c3..26cd54b 100644
--- a/drivers/iio/adc/ad7266.c
+++ b/drivers/iio/adc/ad7266.c
@@ -397,7 +397,7 @@ static int ad7266_probe(struct spi_device *spi)
 	st = iio_priv(indio_dev);
 
 	st->reg = devm_regulator_get(&spi->dev, "vref");
-	if (!IS_ERR_OR_NULL(st->reg)) {
+	if (!IS_ERR(st->reg)) {
 		ret = regulator_enable(st->reg);
 		if (ret)
 			return ret;
-- 
1.9.1

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