diff options
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/host/ehci-hcd.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c index e66706a..e8ba4c4 100644 --- a/drivers/usb/host/ehci-hcd.c +++ b/drivers/usb/host/ehci-hcd.c @@ -1095,6 +1095,14 @@ int ehci_suspend(struct usb_hcd *hcd, bool do_wakeup) clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags); spin_unlock_irq(&ehci->lock); + synchronize_irq(hcd->irq); + + /* Check for race with a wakeup request */ + if (do_wakeup && HCD_WAKEUP_PENDING(hcd)) { + ehci_resume(hcd, false); + return -EBUSY; + } + return 0; } EXPORT_SYMBOL_GPL(ehci_suspend); |
