diff options
Diffstat (limited to 'drivers/usb/core/sysfs.c')
-rw-r--r-- | drivers/usb/core/sysfs.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/usb/core/sysfs.c b/drivers/usb/core/sysfs.c index b04afd06e502..32bd130b1eed 100644 --- a/drivers/usb/core/sysfs.c +++ b/drivers/usb/core/sysfs.c | |||
@@ -735,6 +735,8 @@ int usb_create_sysfs_intf_files(struct usb_interface *intf) | |||
735 | struct usb_host_interface *alt = intf->cur_altsetting; | 735 | struct usb_host_interface *alt = intf->cur_altsetting; |
736 | int retval; | 736 | int retval; |
737 | 737 | ||
738 | if (intf->sysfs_files_created) | ||
739 | return 0; | ||
738 | retval = sysfs_create_group(&dev->kobj, &intf_attr_grp); | 740 | retval = sysfs_create_group(&dev->kobj, &intf_attr_grp); |
739 | if (retval) | 741 | if (retval) |
740 | return retval; | 742 | return retval; |
@@ -746,6 +748,7 @@ int usb_create_sysfs_intf_files(struct usb_interface *intf) | |||
746 | if (intf->intf_assoc) | 748 | if (intf->intf_assoc) |
747 | retval = sysfs_create_group(&dev->kobj, &intf_assoc_attr_grp); | 749 | retval = sysfs_create_group(&dev->kobj, &intf_assoc_attr_grp); |
748 | usb_create_intf_ep_files(intf, udev); | 750 | usb_create_intf_ep_files(intf, udev); |
751 | intf->sysfs_files_created = 1; | ||
749 | return 0; | 752 | return 0; |
750 | } | 753 | } |
751 | 754 | ||
@@ -753,8 +756,11 @@ void usb_remove_sysfs_intf_files(struct usb_interface *intf) | |||
753 | { | 756 | { |
754 | struct device *dev = &intf->dev; | 757 | struct device *dev = &intf->dev; |
755 | 758 | ||
759 | if (!intf->sysfs_files_created) | ||
760 | return; | ||
756 | usb_remove_intf_ep_files(intf); | 761 | usb_remove_intf_ep_files(intf); |
757 | device_remove_file(dev, &dev_attr_interface); | 762 | device_remove_file(dev, &dev_attr_interface); |
758 | sysfs_remove_group(&dev->kobj, &intf_attr_grp); | 763 | sysfs_remove_group(&dev->kobj, &intf_attr_grp); |
759 | sysfs_remove_group(&intf->dev.kobj, &intf_assoc_attr_grp); | 764 | sysfs_remove_group(&intf->dev.kobj, &intf_assoc_attr_grp); |
765 | intf->sysfs_files_created = 0; | ||
760 | } | 766 | } |