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>

10 files changed, 28 insertions, 51 deletions

diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 9d75205a511e..e847fb7f5d5d 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -1571,7 +1571,7 @@ read_report_descriptor(struct file *filp, struct kobject *kobj,
                 struct bin_attribute *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 hid_device *hdev = to_hid_device(dev);
 
         if (off >= hdev->rsize)
diff --git a/drivers/hid/hid-roccat-arvo.c b/drivers/hid/hid-roccat-arvo.c
index 1948208fe038..329c5d1270f9 100644
--- a/drivers/hid/hid-roccat-arvo.c
+++ b/drivers/hid/hid-roccat-arvo.c
@@ -191,8 +191,7 @@ static ssize_t arvo_sysfs_write(struct file *fp,
                 struct kobject *kobj, void const *buf,
                 loff_t off, size_t count, size_t real_size, uint command)
 {
-        struct device *dev =
-                        container_of(kobj, struct device, kobj)->parent->parent;
+        struct device *dev = kobj_to_dev(kobj)->parent->parent;
         struct arvo_device *arvo = hid_get_drvdata(dev_get_drvdata(dev));
         struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
         int retval;
@@ -211,8 +210,7 @@ static ssize_t arvo_sysfs_read(struct file *fp,
                 struct kobject *kobj, void *buf, loff_t off,
                 size_t count, size_t real_size, uint command)
 {
-        struct device *dev =
-                        container_of(kobj, struct device, kobj)->parent->parent;
+        struct device *dev = kobj_to_dev(kobj)->parent->parent;
         struct arvo_device *arvo = hid_get_drvdata(dev_get_drvdata(dev));
         struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
         int retval;
diff --git a/drivers/hid/hid-roccat-common.c b/drivers/hid/hid-roccat-common.c
index 02e28e9f4ea7..8155ac5fede2 100644
--- a/drivers/hid/hid-roccat-common.c
+++ b/drivers/hid/hid-roccat-common.c
@@ -134,8 +134,7 @@ ssize_t roccat_common2_sysfs_read(struct file *fp, struct kobject *kobj,
                 char *buf, loff_t off, size_t count,
                 size_t real_size, uint command)
 {
-        struct device *dev =
-                        container_of(kobj, struct device, kobj)->parent->parent;
+        struct device *dev = kobj_to_dev(kobj)->parent->parent;
         struct roccat_common2_device *roccat_dev = hid_get_drvdata(dev_get_drvdata(dev));
         struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
         int retval;
@@ -158,8 +157,7 @@ ssize_t roccat_common2_sysfs_write(struct file *fp, struct kobject *kobj,
                 void const *buf, loff_t off, size_t count,
                 size_t real_size, uint command)
 {
-        struct device *dev =
-                        container_of(kobj, struct device, kobj)->parent->parent;
+        struct device *dev = kobj_to_dev(kobj)->parent->parent;
         struct roccat_common2_device *roccat_dev = hid_get_drvdata(dev_get_drvdata(dev));
         struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
         int retval;
diff --git a/drivers/hid/hid-roccat-isku.c b/drivers/hid/hid-roccat-isku.c
index bc62ed91e451..02db537f8f3e 100644
--- a/drivers/hid/hid-roccat-isku.c
+++ b/drivers/hid/hid-roccat-isku.c
@@ -121,8 +121,7 @@ static ssize_t isku_sysfs_read(struct file *fp, struct kobject *kobj,
                 char *buf, loff_t off, size_t count,
                 size_t real_size, uint command)
 {
-        struct device *dev =
-                        container_of(kobj, struct device, kobj)->parent->parent;
+        struct device *dev = kobj_to_dev(kobj)->parent->parent;
         struct isku_device *isku = hid_get_drvdata(dev_get_drvdata(dev));
         struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
         int retval;
@@ -144,8 +143,7 @@ static ssize_t isku_sysfs_write(struct file *fp, struct kobject *kobj,
                 void const *buf, loff_t off, size_t count,
                 size_t real_size, uint command)
 {
-        struct device *dev =
-                        container_of(kobj, struct device, kobj)->parent->parent;
+        struct device *dev = kobj_to_dev(kobj)->parent->parent;
         struct isku_device *isku = hid_get_drvdata(dev_get_drvdata(dev));
         struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
         int retval;
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;
diff --git a/drivers/hid/hid-roccat-koneplus.c b/drivers/hid/hid-roccat-koneplus.c
index 5e99fcdc71b9..09e8fc72aa1d 100644
--- a/drivers/hid/hid-roccat-koneplus.c
+++ b/drivers/hid/hid-roccat-koneplus.c
@@ -87,8 +87,7 @@ static ssize_t koneplus_sysfs_read(struct file *fp, struct kobject *kobj,
                 char *buf, loff_t off, size_t count,
                 size_t real_size, uint command)
 {
-        struct device *dev =
-                        container_of(kobj, struct device, kobj)->parent->parent;
+        struct device *dev = kobj_to_dev(kobj)->parent->parent;
         struct koneplus_device *koneplus = hid_get_drvdata(dev_get_drvdata(dev));
         struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
         int retval;
@@ -113,8 +112,7 @@ static ssize_t koneplus_sysfs_write(struct file *fp, struct kobject *kobj,
                 void const *buf, loff_t off, size_t count,
                 size_t real_size, uint command)
 {
-        struct device *dev =
-                        container_of(kobj, struct device, kobj)->parent->parent;
+        struct device *dev = kobj_to_dev(kobj)->parent->parent;
         struct koneplus_device *koneplus = hid_get_drvdata(dev_get_drvdata(dev));
         struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
         int retval;
@@ -193,8 +191,7 @@ static ssize_t koneplus_sysfs_read_profilex_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 usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
         ssize_t retval;
 
@@ -212,8 +209,7 @@ static ssize_t koneplus_sysfs_read_profilex_buttons(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 usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
         ssize_t retval;
 
diff --git a/drivers/hid/hid-roccat-kovaplus.c b/drivers/hid/hid-roccat-kovaplus.c
index 966047711fbf..43617fb28b87 100644
--- a/drivers/hid/hid-roccat-kovaplus.c
+++ b/drivers/hid/hid-roccat-kovaplus.c
@@ -128,8 +128,7 @@ static ssize_t kovaplus_sysfs_read(struct file *fp, struct kobject *kobj,
                 char *buf, loff_t off, size_t count,
                 size_t real_size, uint command)
 {
-        struct device *dev =
-                        container_of(kobj, struct device, kobj)->parent->parent;
+        struct device *dev = kobj_to_dev(kobj)->parent->parent;
         struct kovaplus_device *kovaplus = hid_get_drvdata(dev_get_drvdata(dev));
         struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
         int retval;
@@ -154,8 +153,7 @@ static ssize_t kovaplus_sysfs_write(struct file *fp, struct kobject *kobj,
                 void const *buf, loff_t off, size_t count,
                 size_t real_size, uint command)
 {
-        struct device *dev =
-                        container_of(kobj, struct device, kobj)->parent->parent;
+        struct device *dev = kobj_to_dev(kobj)->parent->parent;
         struct kovaplus_device *kovaplus = hid_get_drvdata(dev_get_drvdata(dev));
         struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
         int retval;
@@ -221,8 +219,7 @@ static ssize_t kovaplus_sysfs_read_profilex_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 usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
         ssize_t retval;
 
@@ -240,8 +237,7 @@ static ssize_t kovaplus_sysfs_read_profilex_buttons(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 usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
         ssize_t retval;
 
diff --git a/drivers/hid/hid-roccat-lua.c b/drivers/hid/hid-roccat-lua.c
index 65e2e76bf2fe..ac1a7313e259 100644
--- a/drivers/hid/hid-roccat-lua.c
+++ b/drivers/hid/hid-roccat-lua.c
@@ -30,7 +30,7 @@ static ssize_t lua_sysfs_read(struct file *fp, struct kobject *kobj,
                 char *buf, loff_t off, size_t count,
                 size_t real_size, uint command)
 {
-        struct device *dev = container_of(kobj, struct device, kobj);
+        struct device *dev = kobj_to_dev(kobj);
         struct lua_device *lua = hid_get_drvdata(dev_get_drvdata(dev));
         struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
         int retval;
@@ -52,7 +52,7 @@ static ssize_t lua_sysfs_write(struct file *fp, struct kobject *kobj,
                 void const *buf, loff_t off, size_t count,
                 size_t real_size, uint command)
 {
-        struct device *dev = container_of(kobj, struct device, kobj);
+        struct device *dev = kobj_to_dev(kobj);
         struct lua_device *lua = hid_get_drvdata(dev_get_drvdata(dev));
         struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
         int retval;
diff --git a/drivers/hid/hid-roccat-pyra.c b/drivers/hid/hid-roccat-pyra.c
index 47d7e74231e5..b30aa7b82bf8 100644
--- a/drivers/hid/hid-roccat-pyra.c
+++ b/drivers/hid/hid-roccat-pyra.c
@@ -90,8 +90,7 @@ static ssize_t pyra_sysfs_read(struct file *fp, struct kobject *kobj,
                 char *buf, loff_t off, size_t count,
                 size_t real_size, uint command)
 {
-        struct device *dev =
-                        container_of(kobj, struct device, kobj)->parent->parent;
+        struct device *dev = kobj_to_dev(kobj)->parent->parent;
         struct pyra_device *pyra = hid_get_drvdata(dev_get_drvdata(dev));
         struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
         int retval;
@@ -116,8 +115,7 @@ static ssize_t pyra_sysfs_write(struct file *fp, struct kobject *kobj,
                 void const *buf, loff_t off, size_t count,
                 size_t real_size, uint command)
 {
-        struct device *dev =
-                        container_of(kobj, struct device, kobj)->parent->parent;
+        struct device *dev = kobj_to_dev(kobj)->parent->parent;
         struct pyra_device *pyra = hid_get_drvdata(dev_get_drvdata(dev));
         struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
         int retval;
@@ -191,8 +189,7 @@ static ssize_t pyra_sysfs_read_profilex_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 usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
         ssize_t retval;
 
@@ -210,8 +207,7 @@ static ssize_t pyra_sysfs_read_profilex_buttons(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 usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
         ssize_t retval;
 
@@ -248,8 +244,7 @@ static ssize_t pyra_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 pyra_device *pyra = hid_get_drvdata(dev_get_drvdata(dev));
         struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
         int retval = 0;
diff --git a/drivers/hid/wacom_sys.c b/drivers/hid/wacom_sys.c
index 4b7feb3022c1..a90de9b5d489 100644
--- a/drivers/hid/wacom_sys.c
+++ b/drivers/hid/wacom_sys.c
@@ -1130,7 +1130,7 @@ static ssize_t wacom_show_remote_mode(struct kobject *kobj,
                                       struct kobj_attribute *kattr,
                                       char *buf, int index)
 {
-        struct device *dev = container_of(kobj->parent, struct device, kobj);
+        struct device *dev = kobj_to_dev(kobj->parent);
         struct hid_device *hdev = to_hid_device(dev);
         struct wacom *wacom = hid_get_drvdata(hdev);
         u8 mode;
@@ -1241,7 +1241,7 @@ static ssize_t wacom_store_unpair_remote(struct kobject *kobj,
                                          const char *buf, size_t count)
 {
         unsigned char selector = 0;
-        struct device *dev = container_of(kobj->parent, struct device, kobj);
+        struct device *dev = kobj_to_dev(kobj->parent);
         struct hid_device *hdev = to_hid_device(dev);
         struct wacom *wacom = hid_get_drvdata(hdev);
         int err;