diff options
Diffstat (limited to 'drivers/usb/core/message.c')
| -rw-r--r-- | drivers/usb/core/message.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c index 8b9d669e3784..37239048be14 100644 --- a/drivers/usb/core/message.c +++ b/drivers/usb/core/message.c @@ -1792,14 +1792,15 @@ free_interfaces: * installed, so that the xHCI driver can recalculate the U1/U2 * timeouts. */ - if (usb_disable_lpm(dev)) { + if (dev->actconfig && usb_disable_lpm(dev)) { dev_err(&dev->dev, "%s Failed to disable LPM\n.", __func__); mutex_unlock(hcd->bandwidth_mutex); return -ENOMEM; } ret = usb_hcd_alloc_bandwidth(dev, cp, NULL, NULL); if (ret < 0) { - usb_enable_lpm(dev); + if (dev->actconfig) + usb_enable_lpm(dev); mutex_unlock(hcd->bandwidth_mutex); usb_autosuspend_device(dev); goto free_interfaces; @@ -1819,7 +1820,7 @@ free_interfaces: if (!cp) { usb_set_device_state(dev, USB_STATE_ADDRESS); usb_hcd_alloc_bandwidth(dev, NULL, NULL, NULL); - usb_enable_lpm(dev); + /* Leave LPM disabled while the device is unconfigured. */ mutex_unlock(hcd->bandwidth_mutex); usb_autosuspend_device(dev); goto free_interfaces; |
