On Thu, 10 Apr 2014, Vivek Gautam wrote: > Patch 'b8efdaf USB: EHCI: add check for wakeup/suspend race' > adds a check for possible race between suspend and wakeup interrupt, > and thereby it returns -EBUSY as error code if there's a wakeup > interrupt. > So the platform host controller should not proceed further with > its suspend callback, rather should return immediately to avoid > powering down the essential things, like phy. > > Signed-off-by: Vivek Gautam <[email protected]> > Acked-by: Jingoo Han <[email protected]> > Cc: Alan Stern <[email protected]> > --- > > Changes from v1: > -- Removed unnecessary change 'return 0' > > drivers/usb/host/ehci-exynos.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/drivers/usb/host/ehci-exynos.c b/drivers/usb/host/ehci-exynos.c > index d1d8c47..7f425ac 100644 > --- a/drivers/usb/host/ehci-exynos.c > +++ b/drivers/usb/host/ehci-exynos.c > @@ -212,6 +212,8 @@ static int exynos_ehci_suspend(struct device *dev) > int rc; > > rc = ehci_suspend(hcd, do_wakeup); > + if (rc) > + return rc; > > if (exynos_ehci->otg) > exynos_ehci->otg->set_host(exynos_ehci->otg, &hcd->self);
Acked-by: Alan Stern <[email protected]> -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
