linux-kernel - [PATCH 4/9] mfd: sm501: use DEVICE_ATTR

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Message-ID: <20210602114339.11223-5-thunder.leizhen@huawei.com>
Date:   Wed, 2 Jun 2021 19:43:34 +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 4/9] mfd: sm501: 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/sm501.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/mfd/sm501.c b/drivers/mfd/sm501.c
index 6d2f4a0a901dc08..bc0a2c38653e51c 100644
--- a/drivers/mfd/sm501.c
+++ b/drivers/mfd/sm501.c
@@ -1190,13 +1190,13 @@ static int sm501_register_gpio_i2c(struct sm501_devdata *sm,
 	return 0;
 }
 
-/* sm501_dbg_regs
+/* dbg_regs_show
  *
  * Debug attribute to attach to parent device to show core registers
 */
 
-static ssize_t sm501_dbg_regs(struct device *dev,
-			      struct device_attribute *attr, char *buff)
+static ssize_t dbg_regs_show(struct device *dev,
+			     struct device_attribute *attr, char *buff)
 {
 	struct sm501_devdata *sm = dev_get_drvdata(dev)	;
 	unsigned int reg;
@@ -1213,7 +1213,7 @@ static ssize_t sm501_dbg_regs(struct device *dev,
 }
 
 
-static DEVICE_ATTR(dbg_regs, 0444, sm501_dbg_regs, NULL);
+static DEVICE_ATTR_RO(dbg_regs);
 
 /* sm501_init_reg
  *
-- 
2.26.0.106.g9fadedd