diff options
| -rw-r--r-- | drivers/usb/core/usb.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c index 66678763c24d..a3c42203213a 100644 --- a/drivers/usb/core/usb.c +++ b/drivers/usb/core/usb.c @@ -322,9 +322,15 @@ void usb_driver_release_interface(struct usb_driver *driver, if (!dev->driver || dev->driver != &driver->driver) return; - /* don't disconnect from disconnect(), or before dev_add() */ - if (!klist_node_attached(&dev->knode_driver) && !klist_node_attached(&dev->knode_bus)) + /* don't release from within disconnect() */ + if (iface->condition != USB_INTERFACE_BOUND) + return; + + /* release only after device_add() */ + if (klist_node_attached(&dev->knode_bus)) { + iface->condition = USB_INTERFACE_UNBINDING; device_release_driver(dev); + } dev->driver = NULL; usb_set_intfdata(iface, NULL); |