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usb: use kobj_to_dev() API 

Use kobj_to_dev() API instead of container_of().

Signed-off-by: chenqiwu <chenqiwu@xiaomi.com>
Link: https://lore.kernel.org/r/1581683820-9978-1-git-send-email-qiwuchen55@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
chenqiwu 2020-02-14 20:37:00 +08:00 committed by Greg Kroah-Hartman
parent ca065bf127
commit 0616ca73fd
2 changed files with 4 additions and 4 deletions
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6
drivers/usb/core/sysfs.c
View File

@ -849,7 +849,7 @@ static struct attribute *dev_string_attrs[] = {
static umode_t dev_string_attrs_are_visible(struct kobject *kobj,
struct attribute *a, int n)
{
struct device *dev = container_of(kobj, struct device, kobj);
struct device *dev = kobj_to_dev(kobj);
struct usb_device *udev = to_usb_device(dev);
if (a == &dev_attr_manufacturer.attr) {
@ -883,7 +883,7 @@ read_descriptors(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 usb_device *udev = to_usb_device(dev);
size_t nleft = count;
size_t srclen, n;
@ -1233,7 +1233,7 @@ static struct attribute *intf_assoc_attrs[] = {
static umode_t intf_assoc_attrs_are_visible(struct kobject *kobj,
struct attribute *a, int n)
{
struct device *dev = container_of(kobj, struct device, kobj);
struct device *dev = kobj_to_dev(kobj);
struct usb_interface *intf = to_usb_interface(dev);
if (intf->intf_assoc == NULL)

2
drivers/usb/roles/class.c
View File

@ -199,7 +199,7 @@ EXPORT_SYMBOL_GPL(usb_role_switch_find_by_fwnode);
static umode_t
usb_role_switch_is_visible(struct kobject *kobj, struct attribute *attr, int n)
{
struct device *dev = container_of(kobj, typeof(*dev), kobj);
struct device *dev = kobj_to_dev(kobj);
struct usb_role_switch *sw = to_role_switch(dev);
if (sw->allow_userspace_control)