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| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2010-02-25 22:10:38 +0000 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2010-02-25 22:10:38 +0000 |
| commit | 9f33be2c3a80bdc2cc08342dd77fac87652e0548 (patch) | |
| tree | 7ad6e825427a15c5ec0fc15540abc0429d7f4bce /drivers/usb/host/uhci-hcd.c | |
| parent | 2741ecb4ce5c2d430b5c44b0a169038338c21df5 (diff) | |
| parent | eed18b5fa4d297c681b00144e8c6942dd35d39a7 (diff) | |
Merge branches 'clks' and 'pnx' into devel
Diffstat (limited to 'drivers/usb/host/uhci-hcd.c')
| -rw-r--r-- | drivers/usb/host/uhci-hcd.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/drivers/usb/host/uhci-hcd.c b/drivers/usb/host/uhci-hcd.c index 5cd0e48f67f..99cd00fd351 100644 --- a/drivers/usb/host/uhci-hcd.c +++ b/drivers/usb/host/uhci-hcd.c @@ -749,7 +749,20 @@ static int uhci_rh_suspend(struct usb_hcd *hcd) spin_lock_irq(&uhci->lock); if (!test_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags)) rc = -ESHUTDOWN; - else if (!uhci->dead) + else if (uhci->dead) + ; /* Dead controllers tell no tales */ + + /* Once the controller is stopped, port resumes that are already + * in progress won't complete. Hence if remote wakeup is enabled + * for the root hub and any ports are in the middle of a resume or + * remote wakeup, we must fail the suspend. + */ + else if (hcd->self.root_hub->do_remote_wakeup && + uhci->resuming_ports) { + dev_dbg(uhci_dev(uhci), "suspend failed because a port " + "is resuming\n"); + rc = -EBUSY; + } else suspend_rh(uhci, UHCI_RH_SUSPENDED); spin_unlock_irq(&uhci->lock); return rc; |