diff options
| -rw-r--r-- | drivers/usb/core/driver.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c index 3d7793d..8c08130 100644 --- a/drivers/usb/core/driver.c +++ b/drivers/usb/core/driver.c @@ -279,7 +279,9 @@ static int usb_unbind_interface(struct device *dev) * altsetting means creating new endpoint device entries). * When either of these happens, defer the Set-Interface. */ - if (!error && intf->dev.power.status == DPM_ON) + if (intf->cur_altsetting->desc.bAlternateSetting == 0) + ; /* Already in altsetting 0 so skip Set-Interface */ + else if (!error && intf->dev.power.status == DPM_ON) usb_set_interface(udev, intf->altsetting[0]. desc.bInterfaceNumber, 0); else |