linux-kernel - [PATCH] power-supply: use kobj_to

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Message-Id: <1615877652-31829-1-git-send-email-dj0227@163.com>
Date:   Tue, 16 Mar 2021 14:54:12 +0800
From:   Jian Dong <dj0227@....com>
To:     sre@...nel.org
Cc:     linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org,
        huyue2@...ong.com, dongjian <dongjian@...ong.com>
Subject: [PATCH] power-supply: use kobj_to_dev()

From: dongjian <dongjian@...ong.com>

Use kobj_to_dev() instead of open-coding it

Signed-off-by: dongjian <dongjian@...ong.com>
---
 drivers/power/supply/ds2781_battery.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/power/supply/ds2781_battery.c b/drivers/power/supply/ds2781_battery.c
index 3df3c82..05b859b 100644
--- a/drivers/power/supply/ds2781_battery.c
+++ b/drivers/power/supply/ds2781_battery.c
@@ -626,7 +626,7 @@ static ssize_t ds2781_read_param_eeprom_bin(struct file *filp,
 				struct bin_attribute *bin_attr,
 				char *buf, loff_t off, size_t count)
 {
-	struct device *dev = container_of(kobj, struct device, kobj);
+	struct device *dev = kobj_to_dev(kobj);
 	struct power_supply *psy = to_power_supply(dev);
 	struct ds2781_device_info *dev_info = to_ds2781_device_info(psy);
 
@@ -639,7 +639,7 @@ static ssize_t ds2781_write_param_eeprom_bin(struct file *filp,
 				struct bin_attribute *bin_attr,
 				char *buf, loff_t off, size_t count)
 {
-	struct device *dev = container_of(kobj, struct device, kobj);
+	struct device *dev = kobj_to_dev(kobj);
 	struct power_supply *psy = to_power_supply(dev);
 	struct ds2781_device_info *dev_info = to_ds2781_device_info(psy);
 	int ret;
@@ -671,7 +671,7 @@ static ssize_t ds2781_read_user_eeprom_bin(struct file *filp,
 				struct bin_attribute *bin_attr,
 				char *buf, loff_t off, size_t count)
 {
-	struct device *dev = container_of(kobj, struct device, kobj);
+	struct device *dev = kobj_to_dev(kobj);
 	struct power_supply *psy = to_power_supply(dev);
 	struct ds2781_device_info *dev_info = to_ds2781_device_info(psy);
 
@@ -685,7 +685,7 @@ static ssize_t ds2781_write_user_eeprom_bin(struct file *filp,
 				struct bin_attribute *bin_attr,
 				char *buf, loff_t off, size_t count)
 {
-	struct device *dev = container_of(kobj, struct device, kobj);
+	struct device *dev = kobj_to_dev(kobj);
 	struct power_supply *psy = to_power_supply(dev);
 	struct ds2781_device_info *dev_info = to_ds2781_device_info(psy);
 	int ret;
-- 
1.9.1