misc: eeprom: use kobj_to_dev()

Use kobj_to_dev() instead of open-coding it.

Signed-off-by: Geliang Tang <geliangtang@163.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

4 files changed, 7 insertions, 7 deletions

diff --git a/drivers/misc/eeprom/at24.c b/drivers/misc/eeprom/at24.c
index 5d7c0900fa1b..d105c2564400 100644
--- a/drivers/misc/eeprom/at24.c
+++ b/drivers/misc/eeprom/at24.c
@@ -289,7 +289,7 @@ static ssize_t at24_bin_read(struct file *filp, struct kobject *kobj,
 {
         struct at24_data *at24;
 
-        at24 = dev_get_drvdata(container_of(kobj, struct device, kobj));
+        at24 = dev_get_drvdata(kobj_to_dev(kobj));
         return at24_read(at24, buf, off, count);
 }
 
@@ -420,7 +420,7 @@ static ssize_t at24_bin_write(struct file *filp, struct kobject *kobj,
 {
         struct at24_data *at24;
 
-        at24 = dev_get_drvdata(container_of(kobj, struct device, kobj));
+        at24 = dev_get_drvdata(kobj_to_dev(kobj));
         return at24_write(at24, buf, off, count);
 }
 
diff --git a/drivers/misc/eeprom/at25.c b/drivers/misc/eeprom/at25.c
index f850ef556bcc..3e9e5a28acaa 100644
--- a/drivers/misc/eeprom/at25.c
+++ b/drivers/misc/eeprom/at25.c
@@ -139,7 +139,7 @@ at25_bin_read(struct file *filp, struct kobject *kobj,
         struct device           *dev;
         struct at25_data        *at25;
 
-        dev = container_of(kobj, struct device, kobj);
+        dev = kobj_to_dev(kobj);
         at25 = dev_get_drvdata(dev);
 
         return at25_ee_read(at25, buf, off, count);
@@ -273,7 +273,7 @@ at25_bin_write(struct file *filp, struct kobject *kobj,
         struct device           *dev;
         struct at25_data        *at25;
 
-        dev = container_of(kobj, struct device, kobj);
+        dev = kobj_to_dev(kobj);
         at25 = dev_get_drvdata(dev);
 
         return at25_ee_write(at25, buf, off, count);
diff --git a/drivers/misc/eeprom/eeprom.c b/drivers/misc/eeprom/eeprom.c
index 7342fd637031..3d1d55157e5f 100644
--- a/drivers/misc/eeprom/eeprom.c
+++ b/drivers/misc/eeprom/eeprom.c
@@ -84,7 +84,7 @@ static ssize_t eeprom_read(struct file *filp, struct kobject *kobj,
                            struct bin_attribute *bin_attr,
                            char *buf, loff_t off, size_t count)
 {
-        struct i2c_client *client = to_i2c_client(container_of(kobj, struct device, kobj));
+        struct i2c_client *client = to_i2c_client(kobj_to_dev(kobj));
         struct eeprom_data *data = i2c_get_clientdata(client);
         u8 slice;
 
diff --git a/drivers/misc/eeprom/eeprom_93xx46.c b/drivers/misc/eeprom/eeprom_93xx46.c
index ff63f05edc76..473aa0a2eaf6 100644
--- a/drivers/misc/eeprom/eeprom_93xx46.c
+++ b/drivers/misc/eeprom/eeprom_93xx46.c
@@ -45,7 +45,7 @@ eeprom_93xx46_bin_read(struct file *filp, struct kobject *kobj,
         int bits, ret;
         u16 cmd_addr;
 
-        dev = container_of(kobj, struct device, kobj);
+        dev = kobj_to_dev(kobj);
         edev = dev_get_drvdata(dev);
 
         cmd_addr = OP_READ << edev->addrlen;
@@ -190,7 +190,7 @@ eeprom_93xx46_bin_write(struct file *filp, struct kobject *kobj,
         struct device *dev;
         int i, ret, step = 1;
 
-        dev = container_of(kobj, struct device, kobj);
+        dev = kobj_to_dev(kobj);
         edev = dev_get_drvdata(dev);
 
         /* only write even number of bytes on 16-bit devices */