If host/hub initiated link pm is prevented by a driver flag we still must ensure that periodic endpoints have longer service intervals than link pm exit latency before allowing device initiated link pm.
Fix this by continue walking and checking endpoint service interval if xhci_get_timeout_no_hub_lpm() returns anything else than USB3_LPM_DISABLED
While at it fix the split line error message
Tested-by: Jan Schmidt jan@centricular.com Cc: stable@vger.kernel.org Signed-off-by: Mathias Nyman mathias.nyman@linux.intel.com --- drivers/usb/host/xhci.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 500865975687..aed5a65f25bd 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -4790,10 +4790,12 @@ static u16 xhci_calculate_lpm_timeout(struct usb_hcd *hcd, if (intf->dev.driver) { driver = to_usb_driver(intf->dev.driver); if (driver && driver->disable_hub_initiated_lpm) { - dev_dbg(&udev->dev, "Hub-initiated %s disabled " - "at request of driver %s\n", - state_name, driver->name); - return xhci_get_timeout_no_hub_lpm(udev, state); + dev_dbg(&udev->dev, "Hub-initiated %s disabled at request of driver %s\n", + state_name, driver->name); + timeout = xhci_get_timeout_no_hub_lpm(udev, + state); + if (timeout == USB3_LPM_DISABLED) + return timeout; } }