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authorGeliang Tang <geliangtang@163.com>2015-12-27 12:25:24 +0300
committerJiri Kosina <jkosina@suse.cz>2015-12-28 15:41:51 +0300
commit2cf83833fc9cff04c50e402260b724b3f001d737 (patch)
tree6e0d76a5c4ab8d408665bacd2699cb9cd304aefb /drivers/hid/hid-roccat-kone.c
parentd98ba98c4fbff91abb37eef628ccce0c218b4185 (diff)
downloadlinux-2cf83833fc9cff04c50e402260b724b3f001d737.tar.xz
HID: use kobj_to_dev()
Use kobj_to_dev() instead of open-coding it. Signed-off-by: Geliang Tang <geliangtang@163.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid/hid-roccat-kone.c')
-rw-r--r--drivers/hid/hid-roccat-kone.c12
1 files changed, 4 insertions, 8 deletions
diff --git a/drivers/hid/hid-roccat-kone.c b/drivers/hid/hid-roccat-kone.c
index c29265055ac1..bf4675a27396 100644
--- a/drivers/hid/hid-roccat-kone.c
+++ b/drivers/hid/hid-roccat-kone.c
@@ -269,8 +269,7 @@ static int kone_get_firmware_version(struct usb_device *usb_dev, int *result)
static ssize_t kone_sysfs_read_settings(struct file *fp, struct kobject *kobj,
struct bin_attribute *attr, char *buf,
loff_t off, size_t count) {
- struct device *dev =
- container_of(kobj, struct device, kobj)->parent->parent;
+ struct device *dev = kobj_to_dev(kobj)->parent->parent;
struct kone_device *kone = hid_get_drvdata(dev_get_drvdata(dev));
if (off >= sizeof(struct kone_settings))
@@ -294,8 +293,7 @@ static ssize_t kone_sysfs_read_settings(struct file *fp, struct kobject *kobj,
static ssize_t kone_sysfs_write_settings(struct file *fp, struct kobject *kobj,
struct bin_attribute *attr, char *buf,
loff_t off, size_t count) {
- struct device *dev =
- container_of(kobj, struct device, kobj)->parent->parent;
+ struct device *dev = kobj_to_dev(kobj)->parent->parent;
struct kone_device *kone = hid_get_drvdata(dev_get_drvdata(dev));
struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
int retval = 0, difference, old_profile;
@@ -332,8 +330,7 @@ static BIN_ATTR(settings, 0660, kone_sysfs_read_settings,
static ssize_t kone_sysfs_read_profilex(struct file *fp,
struct kobject *kobj, struct bin_attribute *attr,
char *buf, loff_t off, size_t count) {
- struct device *dev =
- container_of(kobj, struct device, kobj)->parent->parent;
+ struct device *dev = kobj_to_dev(kobj)->parent->parent;
struct kone_device *kone = hid_get_drvdata(dev_get_drvdata(dev));
if (off >= sizeof(struct kone_profile))
@@ -353,8 +350,7 @@ static ssize_t kone_sysfs_read_profilex(struct file *fp,
static ssize_t kone_sysfs_write_profilex(struct file *fp,
struct kobject *kobj, struct bin_attribute *attr,
char *buf, loff_t off, size_t count) {
- struct device *dev =
- container_of(kobj, struct device, kobj)->parent->parent;
+ struct device *dev = kobj_to_dev(kobj)->parent->parent;
struct kone_device *kone = hid_get_drvdata(dev_get_drvdata(dev));
struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
struct kone_profile *profile;