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authorLinus Torvalds <torvalds@woody.linux-foundation.org>2007-11-28 16:03:09 -0800
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-11-28 16:03:09 -0800
commitbb0851ff9dc65dd9c9365fdb87895d98235ac463 (patch)
treed19b7440bb5b0dec31cef2c384cccdd473f314e7 /drivers/usb/core/sysfs.c
parent34f2c1c35ff014a5d145971e41caa940cd62d563 (diff)
parent5f629ad7e5f9b99c6d025bf199d402734bd72d0f (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (25 commits) USB: s3c2410 gadget: ensure vbus pin in input mode during read USB: s3c2410 gadget: allow sharing of vbus irq USB: s3c2410 gadget: Header move fixups USB: usb-storage: unusual_devs entry for JetFlash TS1GJF2A USB: fix up EHCI startup synchronization USB: make the microtek driver and HAL cooperate USB: uevent environment key fix USB: keep track of whether interface sysfs files exist USB: sierra: new product id USB HCD: avoid duplicate local_irq_disable() USB: mailing lists have changed USB: remove USB HUB entry from MAINTAINERS USB: fix directory references in usb/README USB: add support for an older firmware revision for the Nikon D200 USB: FIx locks and urb->status in adutux (updated) USB: power-management documenation update USB: Fix signr comment in usbdevice_fs.h usbserial: fix inconsistent lock state USB: fix usbled disconnect read race #2 USB: free memory when writing fails in usb/serial/mos7840.c ...
Diffstat (limited to 'drivers/usb/core/sysfs.c')
-rw-r--r--drivers/usb/core/sysfs.c6
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)
struct usb_host_interface *alt = intf->cur_altsetting;
int retval;
+ if (intf->sysfs_files_created)
+ return 0;
retval = sysfs_create_group(&dev->kobj, &intf_attr_grp);
if (retval)
return retval;
@@ -746,6 +748,7 @@ int usb_create_sysfs_intf_files(struct usb_interface *intf)
if (intf->intf_assoc)
retval = sysfs_create_group(&dev->kobj, &intf_assoc_attr_grp);
usb_create_intf_ep_files(intf, udev);
+ intf->sysfs_files_created = 1;
return 0;
}
@@ -753,8 +756,11 @@ void usb_remove_sysfs_intf_files(struct usb_interface *intf)
{
struct device *dev = &intf->dev;
+ if (!intf->sysfs_files_created)
+ return;
usb_remove_intf_ep_files(intf);
device_remove_file(dev, &dev_attr_interface);
sysfs_remove_group(&dev->kobj, &intf_attr_grp);
sysfs_remove_group(&intf->dev.kobj, &intf_assoc_attr_grp);
+ intf->sysfs_files_created = 0;
}