Suspend scenario in case of OHCI was not properly
handled in ochi_suspend()routine. This does proper
handling of suspend scenario.
Signed-off-by: Manjunath Goudar <manjunath.gou...@linaro.org>
Cc: Arnd Bergmann <a...@arndb.de>
Cc: Alan Stern <st...@rowland.harvard.edu>
Cc: Greg KH <g...@kroah.com>
Cc: linux-usb@vger.kernel.org
V3: New patch.
---
drivers/usb/host/ohci-hcd.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
index b69a49e..f3dcaa2 100644
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -1034,6 +1034,7 @@ int ohci_suspend(struct usb_hcd *hcd, bool do_wakeup)
{
struct ohci_hcd *ohci = hcd_to_ohci (hcd);
unsigned long flags;
+ int rc = 0;
/* Disable irq emission and mark HW unaccessible. Use
* the spinlock to properly synchronize with possible pending
@@ -1046,7 +1047,13 @@ int ohci_suspend(struct usb_hcd *hcd, bool do_wakeup)
clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
spin_unlock_irqrestore (&ohci->lock, flags);
- return 0;
+ synchronize_irq(hcd->irq);
+
+ if (do_wakeup && HCD_WAKEUP_PENDING(hcd)) {
+ ohci_resume(hcd, false);
+ rc = -EBUSY;
+ }
+ return rc;
}
EXPORT_SYMBOL_GPL(ohci_suspend);
--
1.7.9.5
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