linux-kernel - [PATCH 2/9] mfd: ucb1x00-assabet: use DEVICE_ATTR

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Message-ID: <20210602114339.11223-3-thunder.leizhen@huawei.com>
Date:   Wed, 2 Jun 2021 19:43:32 +0800
From:   Zhen Lei <thunder.leizhen@...wei.com>
To:     Lee Jones <lee.jones@...aro.org>,
        patches <patches@...nsource.cirrus.com>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        linux-kernel <linux-kernel@...r.kernel.org>
CC:     Zhen Lei <thunder.leizhen@...wei.com>
Subject: [PATCH 2/9] mfd: ucb1x00-assabet: use DEVICE_ATTR_RO macro

Use DEVICE_ATTR_RO macro helper instead of plain DEVICE_ATTR, which makes
the code a bit shorter and easier to read.

Signed-off-by: Zhen Lei <thunder.leizhen@...wei.com>
---
 drivers/mfd/ucb1x00-assabet.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mfd/ucb1x00-assabet.c b/drivers/mfd/ucb1x00-assabet.c
index ecc9e9fc331d6a3..6a389737c6153bc 100644
--- a/drivers/mfd/ucb1x00-assabet.c
+++ b/drivers/mfd/ucb1x00-assabet.c
@@ -28,7 +28,7 @@ static ssize_t name##_show(struct device *dev, struct device_attribute *attr, \
 	ucb1x00_adc_disable(ucb);				\
 	return sprintf(buf, "%d\n", val);			\
 }								\
-static DEVICE_ATTR(name,0444,name##_show,NULL)
+static DEVICE_ATTR_RO(name)
 
 UCB1X00_ATTR(vbatt, UCB_ADC_INP_AD1);
 UCB1X00_ATTR(vcharger, UCB_ADC_INP_AD0);
-- 
2.26.0.106.g9fadedd